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Hommel, Johannes

Johannes Hommel

Herr Dr.-Ing.

wissenschaftlicher Mitarbeiter
Institut für Wasser- und Umweltsystemmodellierung
Lehrstuhl für Hydromechanik und Hydrosystemmodellierung

Kontakt

+49 711 685 64600
+49 711 685 60430
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Visitenkarte (VCF)

Pfaffenwaldring 61
70569 Stuttgart
Deutschland
Raum: 1.011

Sprechstunde

Nach Vereinbarung

Lehre

Boden- und Grundwassersanierung
Environmental Fluid Mechanics I Modul

Lebenslauf

Abitur

2005 am Technischen Gymnasium Calw

Akademische Grade
2011: Diplom (Dipl.Ing.) in Umweltschutztechnik, Universität Stuttgart
2016: Promotion (Dr.-Ing), Universität Stuttgart

Akademischer Werdegang

2012 - 2016: akademischer Mitarbeiter (Doktorand), Internationales Graduiertenkolleg 1398 "NUPUS", Institut für Wasser- und Umweltsystemmodellierung, Universität Stuttgart
seit März 2016: akademischer Mitarbeiter (Postdoktorand), Institut für Wasser- und Umweltsystemmodellierung, Universität Stuttgart

Publikationen

(Zeitschriften-) Aufsätze
1. Lee, D., Weinhardt, F., Hommel, J., Piotrowski, J., Class, H., & Steeb, H. (2023). Machine learning assists in increasing the time resolution of X-ray computed tomography applied to mineral precipitation in porous media. Scientific Reports, 13, 10529. https://doi.org/10.1038/s41598-023-37523-0
  Zusammenfassung
  Many subsurface engineering technologies or natural processes cause porous medium properties, such as porosity or permeability, to evolve in time. Studying and understanding such processes on the pore scale is strongly aided by visualizing the details of geometric and morphological changes in the pores. For realistic 3D porous media, X-Ray Computed Tomography (XRCT) is the method of choice for visualization. However, the necessary high spatial resolution requires either access to limited high-energy synchrotron facilities or data acquisition times which are considerably longer (e.g. hours) than the time scales of the processes causing the pore geometry change (e.g. minutes). Thus, so far, conventional benchtop XRCT technologies are often too slow to allow for studying dynamic processes. Interrupting experiments for performing XRCT scans is also in many instances no viable approach. We propose a novel workflow for investigating dynamic precipitation processes in porous media systems in 3D using a convent.
  BibTeX
  @article{Leeetal2023, abstract = {Many subsurface engineering technologies or natural processes cause porous medium properties, such as porosity or permeability, to evolve in time. Studying and understanding such processes on the pore scale is strongly aided by visualizing the details of geometric and morphological changes in the pores. For realistic 3D porous media, X-Ray Computed Tomography (XRCT) is the method of choice for visualization. However, the necessary high spatial resolution requires either access to limited high-energy synchrotron facilities or data acquisition times which are considerably longer (e.g. hours) than the time scales of the processes causing the pore geometry change (e.g. minutes). Thus, so far, conventional benchtop XRCT technologies are often too slow to allow for studying dynamic processes. Interrupting experiments for performing XRCT scans is also in many instances no viable approach. We propose a novel workflow for investigating dynamic precipitation processes in porous media systems in 3D using a convent.}, author = {Lee, Dongwon and Weinhardt, Felix and Hommel, Johannes and Piotrowski, Joseph and Class, Holger and Steeb, Holger}, doi = {10.1038/s41598-023-37523-0}, journal = {Scientific Reports}, pages = 10529, title = {Machine learning assists in increasing the time resolution of X-ray computed tomography applied to mineral precipitation in porous media}, url = {https://doi.org/10.1038/s41598-023-37523-0}, volume = 13, year = 2023 }
  Link
  https://doi.org/10.1038/s41598-023-37523-0
2. Weinhardt, F., Deng, J., Hommel, J., Vahid Dastjerdi, S., Gerlach, R., Steeb, H., & Class, H. (2022). Spatiotemporal Distribution of Precipitates and Mineral Phase Transition During Biomineralization Affect Porosity–Permeability Relationships. Transport in Porous Media, 143(2), Article 2. https://doi.org/10.1007/s11242-022-01782-8
  Zusammenfassung
  Enzymatically induced calcium carbonate precipitation is a promising geotechnique with the potential, for example, to seal leakage pathways in the subsurface or to stabilize soils. Precipitation of calcium carbonate in a porous medium reduces the porosity and, consequently, the permeability. With pseudo-2D microfluidic experiments, including pressure monitoring and, for visualization, optical microscopy and X-ray computed tomography, pore-space alterations were reliably related to corresponding hydraulic responses. The study comprises six experiments with two different pore structures, a simple, quasi-1D structure, and a 2D structure. Using a continuous injection strategy with either constant or step-wise reduced flow rates, we identified key mechanisms that significantly influence the relationship between porosity and permeability. In the quasi-1D structure, the location of precipitates is more relevant to the hydraulic response (pressure gradients) than the overall porosity change. In the quasi-2D structure, this is different, because flow can bypass locally clogged regions, thus leading to steadier porosity–permeability relationships. Moreover, in quasi-2D systems, during continuous injection, preferential flow paths can evolve and remain open. Classical porosity–permeability power-law relationships with constant exponents cannot adequately describe this phenomenon. We furthermore observed coexistence and transformation of different polymorphs of calcium carbonate, namely amorphous calcium carbonate, vaterite, and calcite and discuss their influence on the observed development of preferential flow paths. This has so far not been accounted for in the state-of-the-art approaches for porosity–permeability relationships during calcium carbonate precipitation in porous media.
  BibTeX
  @article{weinhardt_spatiotemporal_2022, abstract = {Enzymatically induced calcium carbonate precipitation is a promising geotechnique with the potential, for example, to seal leakage pathways in the subsurface or to stabilize soils. Precipitation of calcium carbonate in a porous medium reduces the porosity and, consequently, the permeability. With pseudo-2D microfluidic experiments, including pressure monitoring and, for visualization, optical microscopy and X-ray computed tomography, pore-space alterations were reliably related to corresponding hydraulic responses. The study comprises six experiments with two different pore structures, a simple, quasi-1D structure, and a 2D structure. Using a continuous injection strategy with either constant or step-wise reduced flow rates, we identified key mechanisms that significantly influence the relationship between porosity and permeability. In the quasi-1D structure, the location of precipitates is more relevant to the hydraulic response (pressure gradients) than the overall porosity change. In the quasi-2D structure, this is different, because flow can bypass locally clogged regions, thus leading to steadier porosity–permeability relationships. Moreover, in quasi-2D systems, during continuous injection, preferential flow paths can evolve and remain open. Classical porosity–permeability power-law relationships with constant exponents cannot adequately describe this phenomenon. We furthermore observed coexistence and transformation of different polymorphs of calcium carbonate, namely amorphous calcium carbonate, vaterite, and calcite and discuss their influence on the observed development of preferential flow paths. This has so far not been accounted for in the state-of-the-art approaches for porosity–permeability relationships during calcium carbonate precipitation in porous media.}, author = {Weinhardt, Felix and Deng, Jingxuan and Hommel, Johannes and Vahid Dastjerdi, Samaneh and Gerlach, Robin and Steeb, Holger and Class, Holger}, doi = {10.1007/s11242-022-01782-8}, issn = {1573-1634}, journal = {Transport in Porous Media}, language = {en}, month = {06}, number = 2, pages = {527--549}, title = {Spatiotemporal {Distribution} of {Precipitates} and {Mineral} {Phase} {Transition} {During} {Biomineralization} {Affect} {Porosity}–{Permeability} {Relationships}}, url = {https://doi.org/10.1007/s11242-022-01782-8}, urldate = {2022-07-08}, volume = 143, year = 2022 }
  Link
  https://doi.org/10.1007/s11242-022-01782-8
3. Hommel, J., Gehring, L., Weinhardt, F., Ruf, M., & Steeb, H. (2022). Effects of Enzymatically Induced Carbonate Precipitation on Capillary Pressure-Saturation Relations. Minerals, 12(10), Article 10. https://doi.org/10.3390/min12101186
  Zusammenfassung
  Leakage mitigation methods are an important part of reservoir engineering and subsurface fluid storage, in particular. In the context of multi-phase systems of subsurface storage, e.g., subsurface CO2 storage, a reduction in the intrinsic permeability is not the only parameter to influence the potential flow or leakage; multi-phase flow parameters, such as relative permeability and capillary pressure, are key parameters that are likely to be influenced by pore-space reduction due to leakage mitigation methods, such as induced precipitation. In this study, we investigate the effects of enzymatically induced carbonate precipitation on capillary pressure–saturation relations as the first step in accounting for the effects of induced precipitation on multi-phase flow parameters. This is, to our knowledge, the first exploration of the effect of enzymatically induced carbonate precipitation on capillary pressure–saturation relations thus far. First, pore-scale resolved microfluidic experiments in 2D glass cells and 3D sintered glass-bead columns were conducted, and the change in the pore geometry was observed by light microscopy and micro X-ray computed tomography, respectively. Second, the effects of the geometric change on the capillary pressure–saturation curves were evaluated by numerical drainage experiments using pore-network modeling on the pore networks extracted from the observed geometries. Finally, parameters of both the Brooks–Corey and Van Genuchten relations were fitted to the capillary pressure–saturation curves determined by pore-network modeling and compared with the reduction in porosity as an average measure of the pore geometry’s change due to induced precipitation. The capillary pressures increased with increasing precipitation and reduced porosity. For the 2D setups, the change in the parameters of the capillary pressure–saturation relation was parameterized. However, for more realistic initial geometries of the 3D samples, while the general patterns of increasing capillary pressure may be observed, such a parameterization was not possible using only porosity or porosity reduction, likely due to the much higher variability in the pore-scale distribution of the precipitates between the experiments. Likely, additional parameters other than porosity will need to be considered to accurately describe the effects of induced carbonate precipitation on the capillary pressure–saturation relation of porous media.
  BibTeX
  @article{min12101186, abstract = {Leakage mitigation methods are an important part of reservoir engineering and subsurface fluid storage, in particular. In the context of multi-phase systems of subsurface storage, e.g., subsurface CO2 storage, a reduction in the intrinsic permeability is not the only parameter to influence the potential flow or leakage; multi-phase flow parameters, such as relative permeability and capillary pressure, are key parameters that are likely to be influenced by pore-space reduction due to leakage mitigation methods, such as induced precipitation. In this study, we investigate the effects of enzymatically induced carbonate precipitation on capillary pressure–saturation relations as the first step in accounting for the effects of induced precipitation on multi-phase flow parameters. This is, to our knowledge, the first exploration of the effect of enzymatically induced carbonate precipitation on capillary pressure–saturation relations thus far. First, pore-scale resolved microfluidic experiments in 2D glass cells and 3D sintered glass-bead columns were conducted, and the change in the pore geometry was observed by light microscopy and micro X-ray computed tomography, respectively. Second, the effects of the geometric change on the capillary pressure–saturation curves were evaluated by numerical drainage experiments using pore-network modeling on the pore networks extracted from the observed geometries. Finally, parameters of both the Brooks–Corey and Van Genuchten relations were fitted to the capillary pressure–saturation curves determined by pore-network modeling and compared with the reduction in porosity as an average measure of the pore geometry’s change due to induced precipitation. The capillary pressures increased with increasing precipitation and reduced porosity. For the 2D setups, the change in the parameters of the capillary pressure–saturation relation was parameterized. However, for more realistic initial geometries of the 3D samples, while the general patterns of increasing capillary pressure may be observed, such a parameterization was not possible using only porosity or porosity reduction, likely due to the much higher variability in the pore-scale distribution of the precipitates between the experiments. Likely, additional parameters other than porosity will need to be considered to accurately describe the effects of induced carbonate precipitation on the capillary pressure–saturation relation of porous media.}, article-number = {1186}, author = {Hommel, Johannes and Gehring, Luca and Weinhardt, Felix and Ruf, Matthias and Steeb, Holger}, doi = {10.3390/min12101186}, issn = {2075-163X}, journal = {Minerals}, number = 10, title = {Effects of Enzymatically Induced Carbonate Precipitation on Capillary Pressure-Saturation Relations}, url = {https://www.mdpi.com/2075-163X/12/10/1186}, volume = 12, year = 2022 }
  Link
  https://www.mdpi.com/2075-163X/12/10/1186
4. Scheurer, S., Schäfer Rodrigues Silva, A., Mohammadi, F., Hommel, J., Oladyshkin, S., Flemisch, B., & Nowak, W. (2021). Surrogate-based Bayesian comparison of computationally expensive models: application to microbially induced calcite precipitation. Computational Geosciences. https://doi.org/10.1007/s10596-021-10076-9
  Zusammenfassung
  Geochemical processes in subsurface reservoirs affected by microbial activity change the material properties of porous media. This is a complex biogeochemical process in subsurface reservoirs that currently contains strong conceptual uncertainty. This means, several modeling approaches describing the biogeochemical process are plausible and modelers face the uncertainty of choosing the most appropriate one. The considered models differ in the underlying hypotheses about the process structure. Once observation data become available, a rigorous Bayesian model selection accompanied by a Bayesian model justifiability analysis could be employed to choose the most appropriate model, i.e. the one that describes the underlying physical processes best in the light of the available data. However, biogeochemical modeling is computationally very demanding because it conceptualizes different phases, biomass dynamics, geochemistry, precipitation and dissolution in porous media. Therefore, the Bayesian framework cannot be based directly on the full computational models as this would require too many expensive model evaluations. To circumvent this problem, we suggest to perform both Bayesian model selection and justifiability analysis after constructing surrogates for the competing biogeochemical models. Here, we will use the arbitrary polynomial chaos expansion. Considering that surrogate representations are only approximations of the analyzed original models, we account for the approximation error in the Bayesian analysis by introducing novel correction factors for the resulting model weights. Thereby, we extend the Bayesian model justifiability analysis and assess model similarities for computationally expensive models. We demonstrate the method on a representative scenario for microbially induced calcite precipitation in a porous medium. Our extension of the justifiability analysis provides a suitable approach for the comparison of computationally demanding models and gives an insight on the necessary amount of data for a reliable model performance.
  BibTeX
  @article{scheurer_surrogate-based_2021, abstract = {Geochemical processes in subsurface reservoirs affected by microbial activity change the material properties of porous media. This is a complex biogeochemical process in subsurface reservoirs that currently contains strong conceptual uncertainty. This means, several modeling approaches describing the biogeochemical process are plausible and modelers face the uncertainty of choosing the most appropriate one. The considered models differ in the underlying hypotheses about the process structure. Once observation data become available, a rigorous Bayesian model selection accompanied by a Bayesian model justifiability analysis could be employed to choose the most appropriate model, i.e. the one that describes the underlying physical processes best in the light of the available data. However, biogeochemical modeling is computationally very demanding because it conceptualizes different phases, biomass dynamics, geochemistry, precipitation and dissolution in porous media. Therefore, the Bayesian framework cannot be based directly on the full computational models as this would require too many expensive model evaluations. To circumvent this problem, we suggest to perform both Bayesian model selection and justifiability analysis after constructing surrogates for the competing biogeochemical models. Here, we will use the arbitrary polynomial chaos expansion. Considering that surrogate representations are only approximations of the analyzed original models, we account for the approximation error in the Bayesian analysis by introducing novel correction factors for the resulting model weights. Thereby, we extend the Bayesian model justifiability analysis and assess model similarities for computationally expensive models. We demonstrate the method on a representative scenario for microbially induced calcite precipitation in a porous medium. Our extension of the justifiability analysis provides a suitable approach for the comparison of computationally demanding models and gives an insight on the necessary amount of data for a reliable model performance.}, author = {Scheurer, Stefania and Schäfer Rodrigues Silva, Aline and Mohammadi, Farid and Hommel, Johannes and Oladyshkin, Sergey and Flemisch, Bernd and Nowak, Wolfgang}, doi = {10.1007/s10596-021-10076-9}, issn = {1573-1499}, journal = {Computational Geosciences}, month = {08}, publisher = {Springer Science and Business Media {LLC}}, title = {Surrogate-based Bayesian comparison of computationally expensive models: application to microbially induced calcite precipitation}, url = {https://doi.org/10.1007/s10596-021-10076-9}, year = 2021 }
  Link
  https://doi.org/10.1007/s10596-021-10076-9
5. von Wolff, L., Weinhardt, F., Class, H., Hommel, J., & Rohde, C. (2021). Investigation of Crystal Growth in Enzymatically Induced Calcite Precipitation by Micro-Fluidic Experimental Methods and Comparison with Mathematical Modeling. Transport in Porous Media, 137(2), Article 2. https://doi.org/10.1007/s11242-021-01560-y
  Zusammenfassung
  Enzymatically induced calcite precipitation (EICP) is an engineering technology that allows for targeted reduction of porosity in a porous medium by precipitation of calcium carbonates. This might be employed for reducing permeability in order to seal flow paths or for soil stabilization. This study investigates the growth of calcium-carbonate crystals in a micro-fluidic EICP setup and relies on experimental results of precipitation observed over time and under flow-through conditions in a setup of four pore bodies connected by pore throats. A phase-field approach to model the growth of crystal aggregates is presented, and the corresponding simulation results are compared to the available experimental observations. We discuss the model's capability to reproduce the direction and volume of crystal growth. The mechanisms that dominate crystal growth are complex depending on the local flow field as well as on concentrations of solutes. We have good agreement between experimental data and model results. In particular, we observe that crystal aggregates prefer to grow in upstream flow direction and toward the center of the flow channels, where the volume growth rate is also higher due to better supply.
  BibTeX
  @article{vonWolff2021-Weinhardt, abstract = {Enzymatically induced calcite precipitation (EICP) is an engineering technology that allows for targeted reduction of porosity in a porous medium by precipitation of calcium carbonates. This might be employed for reducing permeability in order to seal flow paths or for soil stabilization. This study investigates the growth of calcium-carbonate crystals in a micro-fluidic EICP setup and relies on experimental results of precipitation observed over time and under flow-through conditions in a setup of four pore bodies connected by pore throats. A phase-field approach to model the growth of crystal aggregates is presented, and the corresponding simulation results are compared to the available experimental observations. We discuss the model's capability to reproduce the direction and volume of crystal growth. The mechanisms that dominate crystal growth are complex depending on the local flow field as well as on concentrations of solutes. We have good agreement between experimental data and model results. In particular, we observe that crystal aggregates prefer to grow in upstream flow direction and toward the center of the flow channels, where the volume growth rate is also higher due to better supply.}, author = {von Wolff, Lars and Weinhardt, Felix and Class, Holger and Hommel, Johannes and Rohde, Christian}, day = 24, doi = {10.1007/s11242-021-01560-y}, issn = {1573-1634}, journal = {Transport in Porous Media}, month = {02}, number = 2, publisher = {Springer Science and Business Media LLC}, title = {Investigation of Crystal Growth in Enzymatically Induced Calcite Precipitation by Micro-Fluidic Experimental Methods and Comparison with Mathematical Modeling}, url = {https://doi.org/10.1007/s11242-021-01560-y}, volume = 137, year = 2021 }
  Link
  https://doi.org/10.1007/s11242-021-01560-y
6. Kurgyis, K., Hommel, J., Flemisch, B., Helmig, R., & Ott, H. (2021). Explicit continuum scale modeling of low-salinity mechanisms. Journal of Petroleum Science and Engineering, 199, 108336. https://doi.org/10.1016/j.petrol.2020.108336
  Zusammenfassung
  Understanding the influence of injection water composition on the displacement efficiency has been a long-standing issue in reservoir engineering; a reduction of the injection water salinity can lead to additional oil production, which is considered a low-cost and environmentally friendly method for enhanced oil recovery. Several underlying chemical mechanisms have been identified; however, the identification of the governing mechanisms remains difficult and specific to the chemical setting of the reservoir and injection water composition. In this work, we implement two potential mechanisms, namely, double layer expansion and multicomponent ion exchange, to achieve an explicit description of low-salinity effects in the open-source continuum-scale flow simulator DuMuX, with the goal of designing and interpreting experiments, and upscaling the results. By assuming sets of input parameters, we show that there is a minimum required core length dependent on the dispersion of the chemical flooding front dominated by sample heterogeneity. Above this length scale, the saturation profile is fully developed, and the chemical effluent analysis is conclusive, which both is required to calibrate continuum scale models. The change in the chemical water composition shows a characteristic fingerprint for both investigated mechanisms and therefore allows the identification of the leading low-salinity mechanism. The model is publicly available.
  BibTeX
  @article{KURGYIS2021108336, abstract = {Understanding the influence of injection water composition on the displacement efficiency has been a long-standing issue in reservoir engineering; a reduction of the injection water salinity can lead to additional oil production, which is considered a low-cost and environmentally friendly method for enhanced oil recovery. Several underlying chemical mechanisms have been identified; however, the identification of the governing mechanisms remains difficult and specific to the chemical setting of the reservoir and injection water composition. In this work, we implement two potential mechanisms, namely, double layer expansion and multicomponent ion exchange, to achieve an explicit description of low-salinity effects in the open-source continuum-scale flow simulator DuMuX, with the goal of designing and interpreting experiments, and upscaling the results. By assuming sets of input parameters, we show that there is a minimum required core length dependent on the dispersion of the chemical flooding front dominated by sample heterogeneity. Above this length scale, the saturation profile is fully developed, and the chemical effluent analysis is conclusive, which both is required to calibrate continuum scale models. The change in the chemical water composition shows a characteristic fingerprint for both investigated mechanisms and therefore allows the identification of the leading low-salinity mechanism. The model is publicly available.}, author = {Kurgyis, Kata and Hommel, Johannes and Flemisch, Bernd and Helmig, Rainer and Ott, Holger}, doi = {10.1016/j.petrol.2020.108336}, issn = {0920-4105}, journal = {Journal of Petroleum Science and Engineering}, month = {04}, pages = 108336, publisher = {Elsevier {BV}}, title = {Explicit continuum scale modeling of low-salinity mechanisms}, url = {http://www.sciencedirect.com/science/article/pii/S0920410520313905}, volume = 199, year = 2021 }
  Link
  http://www.sciencedirect.com/science/article/pii/S0920410520313905
7. Koch, T., Gläser, D., Weishaupt, K., Ackermann, S., Beck, M., Becker, B., Burbulla, S., Class, H., Coltman, E., Emmert, S., Fetzer, T., Grüninger, C., Heck, K., Hommel, J., Kurz, T., Lipp, M., Mohammadi, F., Scherrer, S., Schneider, M., … Flemisch, B. (2021). DuMux 3 – an open-source simulator for solving flow and transport problems in porous media with a focus on model coupling. Computers & Mathematics with Applications. https://doi.org/10.1016/j.camwa.2020.02.012
  Zusammenfassung
  We present version 3 of the open-source simulator for flow and transport processes in porous media DuMux. DuMux is based on the modular C++ framework Dune (Distributed and Unified Numerics Environment) and is developed as a research code with a focus on modularity and reusability. We describe recent efforts in improving the transparency and efficiency of the development process and community-building, as well as efforts towards quality assurance and reproducible research. In addition to a major redesign of many simulation components in order to facilitate setting up complex simulations in DuMux, version 3 introduces a more consistent abstraction of finite volume schemes. Finally, the new framework for multi-domain simulations is described, and three numerical examples demonstrate its flexibility.
  BibTeX
  @article{Version3Dumux, abstract = {We present version 3 of the open-source simulator for flow and transport processes in porous media DuMux. DuMux is based on the modular C++ framework Dune (Distributed and Unified Numerics Environment) and is developed as a research code with a focus on modularity and reusability. We describe recent efforts in improving the transparency and efficiency of the development process and community-building, as well as efforts towards quality assurance and reproducible research. In addition to a major redesign of many simulation components in order to facilitate setting up complex simulations in DuMux, version 3 introduces a more consistent abstraction of finite volume schemes. Finally, the new framework for multi-domain simulations is described, and three numerical examples demonstrate its flexibility.}, author = {Koch, Timo and Gl\"{a}ser, Dennis and Weishaupt, Kilian and Ackermann, Sina and Beck, Martin and Becker, Beatrix and Burbulla, Samuel and Class, Holger and Coltman, Edward and Emmert, Simon and Fetzer, Thomas and Gr\"{u}ninger, Christoph and Heck, Katharina and Hommel, Johannes and Kurz, Theresa and Lipp, Melanie and Mohammadi, Farid and Scherrer, Samuel and Schneider, Martin and Seitz, Gabriele and Stadler, Leopold and Utz, Martin and Weinhardt, Felix and Flemisch, Bernd}, doi = {10.1016/j.camwa.2020.02.012}, issn = {0898-1221}, journal = {Computers {\&} Mathematics with Applications}, month = {01}, publisher = {Elsevier {BV}}, title = {{DuMux} 3 {\textendash} an open-source simulator for solving flow and transport problems in porous media with a focus on model coupling}, url = {https://doi.org/10.1016/j.camwa.2020.02.012}, year = 2021 }
  Link
  https://doi.org/10.1016/j.camwa.2020.02.012
8. Hommel, J., Akyel, A., Frieling, Z., Phillips, A. J., Gerlach, R., Cunningham, A. B., & Class, H. (2020). A Numerical Model for Enzymatically Induced Calcium Carbonate Precipitation. Applied Sciences, 10(13), Article 13. https://doi.org/10.3390/app10134538
  - BibTeX
  BibTeX
  @article{Hommel2020, author = {Hommel, Johannes and Akyel, Arda and Frieling, Zachary and Phillips, Adrienne J. and Gerlach, Robin and Cunningham, Alfred B. and Class, Holger}, doi = {10.3390/app10134538}, journal = {Applied Sciences}, month = {06}, number = 13, pages = 4538, title = {A Numerical Model for Enzymatically Induced Calcium Carbonate Precipitation}, volume = 10, year = 2020 }
9. Cunningham, A. B., Class, H., Ebigbo, A., Gerlach, R., Phillips, A., & Hommel, J. (2019). Field-scale modeling of microbially induced calcite precipitation. Computational Geosciences, tbd. https://doi.org/10.1007/s10596-018-9797-6
  - BibTeX
  - Link
  BibTeX
  @article{NULL, author = {Cunningham, Alfred B. and Class, Holger and Ebigbo, Anozie and Gerlach, Robin and Phillips, Adrienne and Hommel, Johannes}, doi = {10.1007/s10596-018-9797-6}, journal = {Computational Geosciences}, month = {04}, note = {, IWS2ID=4551 , Partnerinstitution: Montana State University , Partneraddress: Bozeman, Montana, USA }, page = {tbd}, title = {Field-scale modeling of microbially induced calcite precipitation}, url = {http://link.springer.com/article/10.1007/s10596-018-9797-6}, volume = {tbd}, year = 2019 }
  Link
  http://link.springer.com/article/10.1007/s10596-018-9797-6
10. Koch, T., Gläser, D., Weishaupt, K., Ackermann, S., Beck, M., Becker, B., Burbulla, S., Class, H., Coltman, E., Fetzer, T., Flemisch, B., Grüninger, C., Heck, K., Hommel, J., Kurz, T., Lipp, M., Mohammadi, F., Schneider, M., Seitz, G., … Weinhardt, F. (2018). DuMuX 3.0.0. https://doi.org/10.5281/zenodo.2479595
  - BibTeX
  BibTeX
  @article{koch2018dumux, author = {Koch, Timo and Gläser, Dennis and Weishaupt, Kilian and Ackermann, Sina and Beck, Martin and Becker, Beatrix and Burbulla, S. and Class, Holger and Coltman, Edward and Fetzer, Thomas and Flemisch, Bernd and Grüninger, Christoph and Heck, Katharina and Hommel, Johannes and Kurz, Theresa and Lipp, Melanie and Mohammadi, Farid and Schneider, Martin and Seitz, Gabriele and Scholz, Simon and Weinhardt, Felix}, doi = {10.5281/zenodo.2479595}, title = {DuMuX 3.0.0}, year = 2018 }
11. Hommel, J., Coltman, E., & Class, H. (2018). Porosity-Permeability Relations for Evolving Pore Space: A Review with a Focus on (Bio-)geochemically Altered Porous Media. Transport in Porous Media, 2(124), Article 124. https://doi.org/10.1007/s11242-018-1086-2
  - BibTeX
  - Link
  BibTeX
  @article{NULL, author = {Hommel, Johannes and Coltman, Edward and Class, Holger}, doi = {10.1007/s11242-018-1086-2}, journal = {Transport in Porous Media}, month = {05}, note = {, IWS2ID=4501 }, number = 124, page = {589-629}, title = {Porosity-Permeability Relations for Evolving Pore Space: A Review with a Focus on (Bio-)geochemically Altered Porous Media}, url = {https://link.springer.com/article/10.1007%2Fs11242-018-1086-2}, volume = 2, year = 2018 }
  Link
  https://link.springer.com/article/10.1007%2Fs11242-018-1086-2
12. Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2016). Finding a balance between accuracy and effort for modeling biomineralization. Energy Procedia, 97. https://doi.org/10.1016/j.egypro.2016.10.028
  - BibTeX
  - Link
  BibTeX
  @article{NULL, author = {Hommel, Johannes and Ebigbo, Anozie and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, doi = {10.1016/j.egypro.2016.10.028}, journal = {Energy Procedia}, month = {11}, note = {, IWS2ID=4408 , Partnerinstitution: Montana State University }, page = {379-386}, title = {Finding a balance between accuracy and effort for modeling biomineralization}, url = {http://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Hommel_EgyPro_2016.pdf}, volume = 97, year = 2016 }
  Link
  http://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Hommel_EgyPro_2016.pdf
13. Hommel, J., Lauchnor, E., Gerlach, R., Cunningham, A. B., Ebigbo, A., Helmig, R., & Class, H. (2016). Investigating the influence of the initial biomass distribution and injection strategies on biofilm-mediated calcite precipitation in porous media. Transport in Porous Media, 114(2), Article 2. https://doi.org/10.1007/s11242-015-0617-3
  - BibTeX
  - Link
  BibTeX
  @article{NULL, author = {Hommel, Johannes and Lauchnor, Ellen and Gerlach, Robin and Cunningham, Alfred B. and Ebigbo, Anozie and Helmig, Rainer and Class, Holger}, doi = {10.1007/s11242-015-0617-3}, journal = {Transport in Porous Media}, month = {12}, note = {, IWS2ID=3133 , Partnerinstitution: Montana State University , Partneraddress: Bozeman, Montana, USA }, number = 2, page = {557-579}, title = {Investigating the influence of the initial biomass distribution and injection strategies on biofilm-mediated calcite precipitation in porous media}, url = {http://rdcu.be/jUty}, volume = 114, year = 2016 }
  Link
  http://rdcu.be/jUty
14. Hommel, J., Lauchnor, E., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2015). A revised model for microbially induced calcite precipitation: Improvements and new insights based on recent experiments. Water Resources Research, 51(5), Article 5. https://doi.org/10.1002/2014WR016503
  - BibTeX
  BibTeX
  @article{Hommel2015a, author = {Hommel, Johannes and Lauchnor, Ellen and Phillips, Adrienne and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Ebigbo, Anozie and Class, Holger}, doi = {10.1002/2014WR016503}, journal = {Water Resources Research}, month = {05}, note = {, IWS2ID=3059 , Partnerinstitution: Montana State University , Partneraddress: Bozeman, Montana, USA }, number = 5, page = {3695-3715}, title = {A revised model for microbially induced calcite precipitation: Improvements and new insights based on recent experiments}, volume = 51, year = 2015 }
15. Tatomir, A., Schaffer, M., Kissinger, A., Hommel, J., Nuske, P., Licha, T., Helmig, R., & Sauter, M. (2015). Novel approach for modeling kinetic interface-sensitive (KIS) tracers with respect to time-dependent interfacial area change for the optimization of supercritical carbon dioxide injection into deep saline aquifers. International Journal of Greenhouse Gas Control, 33. https://doi.org/10.1016/j.ijggc.2014.11.020
  - BibTeX
  BibTeX
  @article{NULL, author = {Tatomir, Alexandru and Schaffer, Mario and Kissinger, Alexander and Hommel, Johannes and Nuske, Philipp and Licha, Tobias and Helmig, Rainer and Sauter, Martin}, doi = {10.1016/j.ijggc.2014.11.020}, journal = {International Journal of Greenhouse Gas Control}, month = {12}, note = {, IWS2ID=3013 }, page = {145-153}, title = {Novel approach for modeling kinetic interface-sensitive (KIS) tracers with respect to time-dependent interfacial area change for the optimization of supercritical carbon dioxide injection into deep saline aquifers}, volume = 33, year = 2015 }
16. Hommel, J., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2013). Numerical Investigation of Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology. Energy Procedia, 40,2013. https://doi.org/10.1016/j.egypro.2013.08.045
  - BibTeX
  - Link
  BibTeX
  @article{Hommel2013a, author = {Hommel, Johannes and Cunningham, Alfred B. and Helmig, Rainer and Ebigbo, Anozie and Class, Holger}, doi = {10.1016/j.egypro.2013.08.045}, journal = {Energy Procedia}, month = {08}, note = {, date=09.04.2013, IWS2ID=2881 , Institution: European Geosciences Union }, page = {392-397}, title = {Numerical Investigation of Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology}, url = {http://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/Hommel2013_EnergyProcedia.pdf}, volume = {40,2013}, year = 2013 }
  Link
  http://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/Hommel2013_EnergyProcedia.pdf
Datensätze
1. Lee, D., Weinhardt, F., Hommel, J., Class, H., & Steeb, H. (2023). Time resolved micro-XRCT dataset of Enzymatically Induced Calcite Precipitation (EICP) in sintered glass bead columns. DaRUS. https://doi.org/10.18419/darus-2227
  - BibTeX
  - Link
  BibTeX
  @dataset{darus-Leeetal2023, author = {Lee, Dongwon and Weinhardt, Felix and Hommel, Johannes and Class, Holger and Steeb, Holger}, doi = {10.18419/darus-2227}, publisher = {DaRUS}, title = {Time resolved micro-XRCT dataset of Enzymatically Induced Calcite Precipitation (EICP) in sintered glass bead columns}, url = {https://doi.org/10.18419/darus-2227}, version = {V1}, year = 2023 }
  Link
  https://doi.org/10.18419/darus-2227
2. Ruf, M., Hommel, J., & Steeb, H. (2022). Enzymatically induced carbonate precipitation and its effect on capillary pressure-saturation relations of porous media - micro-XRCT dataset of medium column (sample 3). DaRUS. https://doi.org/10.18419/darus-2906
  - BibTeX
  - Link
  BibTeX
  @dataset{darus-Rufetal2022a, author = {Ruf, Matthias and Hommel, Johannes and Steeb, Holger}, doi = {10.18419/darus-2906}, publisher = {DaRUS}, title = {Enzymatically induced carbonate precipitation and its effect on capillary pressure-saturation relations of porous media - micro-XRCT dataset of medium column (sample 3)}, url = {https://doi.org/10.18419/darus-2906}, version = {V1}, year = 2022 }
  Link
  https://doi.org/10.18419/darus-2906
3. Hommel, J., & Gehring, L. (2022). Enzymatically induced carbonate precipitation and its effect on capillary pressure-saturation relations of porous media - column samples. DaRUS. https://doi.org/10.18419/darus-1713
  - BibTeX
  - Link
  BibTeX
  @dataset{darus-HommelGehring2022, author = {Hommel, Johannes and Gehring, Luca}, doi = {10.18419/darus-1713}, publisher = {DaRUS}, title = {Enzymatically induced carbonate precipitation and its effect on capillary pressure-saturation relations of porous media - column samples}, url = {https://doi.org/10.18419/darus-1713}, version = {V1}, year = 2022 }
  Link
  https://doi.org/10.18419/darus-1713
4. Ruf, M., Hommel, J., & Steeb, H. (2022). Enzymatically induced carbonate precipitation and its effect on capillary pressure-saturation relations of porous media - micro-XRCT dataset of high column (sample 4). DaRUS. https://doi.org/10.18419/darus-2907
  - BibTeX
  - Link
  BibTeX
  @dataset{darus-Rufetal2022b, author = {Ruf, Matthias and Hommel, Johannes and Steeb, Holger}, doi = {10.18419/darus-2907}, publisher = {DaRUS}, title = {Enzymatically induced carbonate precipitation and its effect on capillary pressure-saturation relations of porous media - micro-XRCT dataset of high column (sample 4)}, url = {https://doi.org/10.18419/darus-2907}, version = {V1}, year = 2022 }
  Link
  https://doi.org/10.18419/darus-2907
5. Hommel, J., & Weinhardt, F. (2022). Enzymatically induced carbonate precipitation and its effect on capillary pressure-saturation relations of porous media - microfluidics samples. DaRUS. https://doi.org/10.18419/darus-2791
  - BibTeX
  - Link
  BibTeX
  @dataset{darus-HommelWeinhardt2022, author = {Hommel, Johannes and Weinhardt, Felix}, doi = {10.18419/darus-2791}, publisher = {DaRUS}, title = {Enzymatically induced carbonate precipitation and its effect on capillary pressure-saturation relations of porous media - microfluidics samples}, url = {https://doi.org/10.18419/darus-2791}, version = {V1}, year = 2022 }
  Link
  https://doi.org/10.18419/darus-2791
6. Ruf, M., Hommel, J., & Steeb, H. (2022). Enzymatically induced carbonate precipitation and its effect on capillary pressure-saturation relations of porous media - micro-XRCT dataset of low column (sample 10). DaRUS. https://doi.org/10.18419/darus-2908
  - BibTeX
  - Link
  BibTeX
  @dataset{darus-Rufetal2022c, author = {Ruf, Matthias and Hommel, Johannes and Steeb, Holger}, doi = {10.18419/darus-2908}, publisher = {DaRUS}, title = {Enzymatically induced carbonate precipitation and its effect on capillary pressure-saturation relations of porous media - micro-XRCT dataset of low column (sample 10)}, url = {https://doi.org/10.18419/darus-2908}, version = {V1}, year = 2022 }
  Link
  https://doi.org/10.18419/darus-2908
Konferenzbeiträge
1. Kirkland, C. M., Norton, D., Thane, A., Heibert, R., Hommel, J., Kirksey, J., Esposito, R., Cunningham, A., Gerlach, R., Spangler, L., & Phillips, A. (2019). Biomineralization and Wellbore Integrity: A Microscopic Solution to Subsurface Fluid Migration. 14th Greenhouse Gas Control Technologies Conference Melbourne 21-26 October 2018 (GHGT-14), ID 3366088, Article ID 3366088. https://papers.ssrn.com/abstract=3366088
  Zusammenfassung
  Abstract not provided to SSRN.
  BibTeX
  @inproceedings{Hommel-Kirkland-2019-01, abstract = {Abstract not provided to SSRN.}, author = {Kirkland, Catherine M. and Norton, Drew and Thane, Abby and Heibert, Randy and Hommel, Johannes and Kirksey, Jim and Esposito, Richard and Cunningham, Alfred and Gerlach, Robin and Spangler, Lee and Phillips, Adrienne}, booktitle = {14th Greenhouse Gas Control Technologies Conference Melbourne 21-26 October 2018 (GHGT-14)}, institution = {Social Science Research Network}, language = {en}, month = {04}, number = {ID 3366088}, shorttitle = {Biomineralization and {Wellbore} {Integrity}}, title = {Biomineralization and {Wellbore} {Integrity}: {A} {Microscopic} {Solution} to {Subsurface} {Fluid} {Migration}}, type = {{SSRN} {Scholarly} {Paper}}, url = {https://papers.ssrn.com/abstract=3366088}, urldate = {2020-01-14}, year = 2019 }
  Link
  https://papers.ssrn.com/abstract=3366088
2. Hommel, J., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2017, November). Modeling porous medium modification through induced calcite precipitation. 7th GACM Colloquium on Computational Mechanics , 11.10.2017 - 13.10.2017, Stuttgart. https://dx.doi.org/10.18419/opus-9334
  - BibTeX
  - Link
  BibTeX
  @inproceedings{NULL, author = {Hommel, Johannes and Phillips, Adrienne and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {7th GACM Colloquium on Computational Mechanics , 11.10.2017 - 13.10.2017, Stuttgart}, month = {11}, note = {, date=12.10.2017, IWS2ID=4486 }, page = {249-253}, title = {Modeling porous medium modification through induced calcite precipitation}, type = {Proceedings}, url = {https://dx.doi.org/10.18419/opus-9334}, year = 2017 }
  Link
  https://dx.doi.org/10.18419/opus-9334
Abschlussarbeiten
1. Hommel, J. (2011). Modelling biofilm induced calcite precipitation and its effect on two phase flow in porous media [Diplomarbeit]. Universität Stuttgart, Institut für Wasser- und Umweltsystemmodellierung.
  - BibTeX
  BibTeX
  @mastersthesis{NULL, author = {Hommel, Johannes}, month = {12}, note = {, IWS2ID=2711 , Institution: Institut für Wasser- und Umweltsystemmodellierung , Address: Universität Stuttgart }, school = {Universität Stuttgart, Institut für Wasser- und Umweltsystemmodellierung}, title = {Modelling biofilm induced calcite precipitation and its effect on two phase flow in porous media}, type = {Diplomarbeit}, year = 2011 }
Promotionen
1. Hommel, J. (2016). Modeling biogeochemical and mass transport processes in the subsurface: Investigation of microbially induced calcite precipitation (Bd. 244) [Promotionsschrift, Universität Stuttgart, TASK]. https://elib.uni-stuttgart.de/handle/11682/8787
  - BibTeX
  - Link
  BibTeX
  @phdthesis{hommel2016modeling, author = {Hommel, Johannes}, isbn = {978-3-942036-48-1}, month = {02}, note = {, date=15.02.2016, IWSID=3193 , Institution: TASK , Address: Universität Stuttgart , Partnerinstitution: CHR - International Commission for the Hydrology of the Rhine basin , Partneraddress: Montana State University, Bozeman, USA }, school = {Universität Stuttgart, TASK}, title = {Modeling biogeochemical and mass transport processes in the subsurface: Investigation of microbially induced calcite precipitation}, type = {Promotionsschrift}, url = {https://elib.uni-stuttgart.de/handle/11682/8787}, volume = 244, year = 2016 }
  Link
  https://elib.uni-stuttgart.de/handle/11682/8787

Poster

Hommel, J., & Gerlach, R. (2020). Induced calcium carbonate precipitation and two-phase flow properties. In SFB 1313 Status Seminar 2020, 09.03.2020 - 11.03.2020, Herrenberg.
- BibTeX
BibTeX
@misc{hommel-sfb1313-status-herrenberg-2020, author = {Hommel, Johannes and Gerlach, Robin}, booktitle = {SFB 1313 Status Seminar 2020, 09.03.2020 - 11.03.2020, Herrenberg}, month = {03}, title = {Induced calcium carbonate precipitation and two-phase flow properties}, type = {Poster}, year = 2020 }
Hommel, J., & Gerlach, R. (2019). Induced calcium carbonate precipitation and two-phase flow properties. In SFB 1313 Status Seminar 2019, 20.03.2019 - 22.03.2019, Blaubeuren.
- BibTeX
BibTeX
@misc{hommel-sfb1313-status-blaubeuren-2019, author = {Hommel, Johannes and Gerlach, Robin}, booktitle = {SFB 1313 Status Seminar 2019, 20.03.2019 - 22.03.2019, Blaubeuren}, month = {03}, title = {Induced calcium carbonate precipitation and two-phase flow properties}, type = {Poster}, year = 2019 }
Hommel, J., & Gerlach, R. (2018). Induced calcium carbonate precipitation and two -phase flow properties. In SFB 1313 Status Seminar 2018, 24.09.2018 - 26.09.2018, Hechingen.
- BibTeX
BibTeX
@misc{hommel-sfb1313-status-hechingen-2018, author = {Hommel, Johannes and Gerlach, Robin}, booktitle = {SFB 1313 Status Seminar 2018, 24.09.2018 - 26.09.2018, Hechingen}, month = {09}, title = {Induced calcium carbonate precipitation and two -phase flow properties}, type = {Poster}, year = 2018 }
Hommel, J., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2018). Modeling field-scale applications of microbially induced calcium carbonate precipitation. In Computational Methods in Water Resources (CMWR) XXII, 04.06.2018 - 07.06.2018, St. Malo, Frankreich. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2018/CMWR2018Poster.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Phillips, Adrienne and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {Computational Methods in Water Resources (CMWR) XXII, 04.06.2018 - 07.06.2018, St. Malo, Frankreich}, month = {06}, note = {, date=04.06.2018, IWS2ID=4508 }, title = {Modeling field-scale applications of microbially induced calcium carbonate precipitation}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2018/CMWR2018Poster.pdf}, year = 2018 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2018/CMWR2018Poster.pdf
Hommel, J., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2018). Modeling field-scale applications of microbially induced calcium carbonate precipitation. In 2nd International Conference on Simulation Technology (SimTech 2018), 26.03.2018 - 28.03.2018, Stuttgart. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2018/SimTech2018Poster.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Phillips, Adrienne and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {2nd International Conference on Simulation Technology (SimTech 2018), 26.03.2018 - 28.03.2018, Stuttgart}, month = {03}, note = {, date=27.03.2018, IWS2ID=4529 , Institution: SimTech }, title = {Modeling field-scale applications of microbially induced calcium carbonate precipitation}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2018/SimTech2018Poster.pdf}, year = 2018 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2018/SimTech2018Poster.pdf
Mohajer, M., Hommel, J., Shuster, J., & Reith, F. (2017). Development and Implementation of a Gold Mobility Model. In 2nd SRP NUPUS Meeting, 09.10.2017 - 11.10.2017, Mühlhausen im Täle. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2017/NUPUS2017_Hommel_AuMin.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Mohajer, Maral and Hommel, Johannes and Shuster, Jeremiah and Reith, Frank}, booktitle = {2nd SRP NUPUS Meeting, 09.10.2017 - 11.10.2017, Mühlhausen im Täle}, month = {10}, note = {, date=09.11.2017, IWS2ID=4482 }, title = {Development and Implementation of a Gold Mobility Model}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2017/NUPUS2017_Hommel_AuMin.pdf}, year = 2017 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2017/NUPUS2017_Hommel_AuMin.pdf
Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2016). Finding a balance between accuracy and computational effort for modeling biomineralization. In 1st SRP NUPUS Meeting, 05.10.2016 - 07.10.2016, Mühlhausen im Täle. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Hommel_NUPUS_Poster_2016.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Ebigbo, Anozie and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {1st SRP NUPUS Meeting, 05.10.2016 - 07.10.2016, Mühlhausen im Täle}, month = {10}, note = {, date=05.10.2016, IWS2ID=4395 }, title = {Finding a balance between accuracy and computational effort for modeling biomineralization}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Hommel_NUPUS_Poster_2016.pdf}, year = 2016 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Hommel_NUPUS_Poster_2016.pdf
Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2016). Finding a balance between accuracy and effort for modeling biomineralization. In Gordon Research Conference on Flow and Transport in Permeable Media, 01.08.2016 - 05.08.2016, Girona, Spanien. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Gordon_Hommel_2016.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Ebigbo, Anozie and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {Gordon Research Conference on Flow and Transport in Permeable Media, 01.08.2016 - 05.08.2016, Girona, Spanien}, month = {08}, note = {, date=03.08.2016, IWS2ID=4384 , Institution: Gordon Research Conferences }, title = {Finding a balance between accuracy and effort for modeling biomineralization}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Gordon_Hommel_2016.pdf}, year = 2016 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Gordon_Hommel_2016.pdf
Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2016). Finding a balance between accuracy and effort for modeling biomineralization. In Gordon Research Seminar on Flow and Transport in Permeable Media, 30.07.2016 - 31.07.2016, Girona, Spanien. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Gordon_Hommel_2016.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Ebigbo, Anozie and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {Gordon Research Seminar on Flow and Transport in Permeable Media, 30.07.2016 - 31.07.2016, Girona, Spanien}, month = {07}, note = {, date=30.07.2016, IWS2ID=4388 , Institution: Gordon Research Conferences }, title = {Finding a balance between accuracy and effort for modeling biomineralization}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Gordon_Hommel_2016.pdf}, year = 2016 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Gordon_Hommel_2016.pdf
Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2016). Finding a balance between accuracy and computational effort for modeling biomineralization. In EGU General Assembly 2016, 18.04.2016 - 22.04.2016, Vienna, Austria. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/EGU_Hommel_2016.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Ebigbo, Anozie and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {EGU General Assembly 2016, 18.04.2016 - 22.04.2016, Vienna, Austria}, month = {04}, note = {, date=19.04.2016, IWS2ID=4355 }, title = {Finding a balance between accuracy and computational effort for modeling biomineralization}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/EGU_Hommel_2016.pdf}, year = 2016 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/EGU_Hommel_2016.pdf
Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2015). Finding a balance between accuracy and effort for modeling biomineralization. In NUPUS annual meeting 2015 , 08.09.2015 - 12.09.2015, Freudenstadt. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/NUPUS_Hommel_2015.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Ebigbo, Anozie and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {NUPUS annual meeting 2015 , 08.09.2015 - 12.09.2015, Freudenstadt}, month = {09}, note = {, date=11.09.2015, IWS2ID=3110 }, title = {Finding a balance between accuracy and effort for modeling biomineralization}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/NUPUS_Hommel_2015.pdf}, year = 2015 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/NUPUS_Hommel_2015.pdf
Hommel, J., Lauchnor, E., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2015). A revised model for microbially induced calcite precipitation - improvements and insights. In 7th International Conference on Porous Media & Annual Meeting - InterPore 2015, 18.05.2015 - 21.05.2015, Padua, Italy. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/InterPore_Hommel_2015.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Lauchnor, Ellen and Phillips, Adrienne and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Ebigbo, Anozie and Class, Holger}, booktitle = {7th International Conference on Porous Media & Annual Meeting - InterPore 2015, 18.05.2015 - 21.05.2015, Padua, Italy}, month = {05}, note = {, date=19.05.2015, IWS2ID=3056 }, title = {A revised model for microbially induced calcite precipitation - improvements and insights}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/InterPore_Hommel_2015.pdf}, year = 2015 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/InterPore_Hommel_2015.pdf
Hommel, J., Lauchnor, E., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2014). Improvements in Modeling Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology. In Gordon Research Seminar on Flow and Transport in Permeable Media 2014, 05.07.2014 - 06.07.2014, Lewiston, Maine, USA. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/Gordon_Hommel_2014.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Lauchnor, Ellen and Cunningham, Alfred B. and Helmig, Rainer and Ebigbo, Anozie and Class, Holger}, booktitle = {Gordon Research Seminar on Flow and Transport in Permeable Media 2014, 05.07.2014 - 06.07.2014, Lewiston, Maine, USA}, month = {07}, note = {, date=05.07.2014, IWS2ID=3138 , Institution: Gordon Research Conferences }, title = {Improvements in Modeling Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/Gordon_Hommel_2014.pdf}, year = 2014 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/Gordon_Hommel_2014.pdf
Hommel, J., Lauchnor, E., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2014). Improvements in Modeling Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology. In Gordon Research Conference on Flow and Transport in Permeable Media 2014, 06.07.2014 - 11.07.2014, Lewiston, Maine, USA. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Gordon_Hommel_2014.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Lauchnor, Ellen and Cunningham, Alfred B. and Helmig, Rainer and Ebigbo, Anozie and Class, Holger}, booktitle = {Gordon Research Conference on Flow and Transport in Permeable Media 2014, 06.07.2014 - 11.07.2014, Lewiston, Maine, USA}, month = {07}, note = {, date=08.07.2014, IWS2ID=2937 }, title = {Improvements in Modeling Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Gordon_Hommel_2014.pdf}, year = 2014 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Gordon_Hommel_2014.pdf
Hommel, J., Lauchnor, E., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2014). Estimation of uncertain parameters to improve modeling of Microbially Induced Calcite Precipitation. In European Geoscience Union General Assembly 2014, 28.04.2014 - 02.05.2014, Vienna, Austria. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/EGU_Hommel_2014.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Lauchnor, Ellen and Cunningham, Alfred B. and Helmig, Rainer and Ebigbo, Anozie and Class, Holger}, booktitle = {European Geoscience Union General Assembly 2014, 28.04.2014 - 02.05.2014, Vienna, Austria}, month = {05}, note = {, date=02.05.2014, IWS2ID=2923 , Institution: European Geosciences Union }, title = {Estimation of uncertain parameters to improve modeling of Microbially Induced Calcite Precipitation}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/EGU_Hommel_2014.pdf}, year = 2014 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/EGU_Hommel_2014.pdf
Hommel, J., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2014). Estimation of uncertain parameters of the biomineralization model by inverse modeling. In NUPUS annual meeting 2014, 16.03.2014 - 19.03.2014, Freudenstadt. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Nupus-Meeting_Hommel_2014.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Cunningham, Alfred B. and Helmig, Rainer and Ebigbo, Anozie and Class, Holger}, booktitle = {NUPUS annual meeting 2014, 16.03.2014 - 19.03.2014, Freudenstadt}, month = {03}, note = {, date=17.03.2014, IWS2ID=2917 }, title = {Estimation of uncertain parameters of the biomineralization model by inverse modeling}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Nupus-Meeting_Hommel_2014.pdf}, year = 2014 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Nupus-Meeting_Hommel_2014.pdf
Hommel, J., Cunningham, A. B., Ebigbo, A., Helmig, R., & Class, H. (2013). Numerical investigation of microbially induced calcite precipitation as leakage mitigation technology. In NUPUS-Conference, 30.09.2013 - 02.10.2013, Bergen, Norway. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/NUPUS-Conference_Hommel_2013.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Cunningham, Alfred B. and Ebigbo, Anozie and Helmig, Rainer and Class, Holger}, booktitle = {NUPUS-Conference, 30.09.2013 - 02.10.2013, Bergen, Norway}, month = {10}, note = {, date=30.09.2013, IWS2ID=2867 }, title = {Numerical investigation of microbially induced calcite precipitation as leakage mitigation technology}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/NUPUS-Conference_Hommel_2013.pdf}, year = 2013 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/NUPUS-Conference_Hommel_2013.pdf
Hommel, J., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2013). Numerical investigation of microbially induced calcite precipitation as leakage mitigation technology. In NUPUS annual Meeting 17-20 March 2013, 17.03.2013 - 20.03.2013, Freudenstadt. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/Nupus-Meeting_Hommel_2013.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Cunningham, Alfred B. and Helmig, Rainer and Ebigbo, Anozie and Class, Holger}, booktitle = {NUPUS annual Meeting 17-20 March 2013, 17.03.2013 - 20.03.2013, Freudenstadt}, month = {03}, note = {, date=19.03.2013, IWS2ID=2868 }, title = {Numerical investigation of microbially induced calcite precipitation as leakage mitigation technology}, type = {Poster}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/Nupus-Meeting_Hommel_2013.pdf}, year = 2013 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/Nupus-Meeting_Hommel_2013.pdf

Vorträge

Gehring, L., Weinhardt, F., & Hommel, J. (2022). Investigating enzymatically induced carbonate precipitation and its effects on capillary pressure-saturation relations. In CMWR 2022: XXIV International Conference: Computational Methods in Water Resources, 9-23 June 2022, Gdańsk, Poland. https://cmwrconference.org/
- BibTeX
- Link
BibTeX
@misc{Hommel-CMWR-2022, author = {Gehring, Luca and Weinhardt, Felix and Hommel, Johannes}, booktitle = {CMWR 2022: XXIV International Conference: Computational Methods in Water Resources, 9-23 June 2022, Gdańsk, Poland}, month = {06}, title = {Investigating enzymatically induced carbonate precipitation and its effects on capillary pressure-saturation relations}, type = {Konferenzbeitrag}, url = {https://cmwrconference.org/}, year = 2022 }
Link
https://cmwrconference.org/
Hommel, J., Weinhardt, F., Steeb, H., & Class, H. (2021). Investigating the Effect of Enzymatically Induced Carbonate Precipitation on Hydraulic Properties. In InterPore, 13th International Conference on Porous Media, 31.05.-04.06.2021. https://events.interpore.org/event/25/
- BibTeX
- Link
BibTeX
@misc{hommel2021interpore, author = {Hommel, Johannes and Weinhardt, Felix and Steeb, Holger and Class, Holger}, booktitle = {InterPore, 13th International Conference on Porous Media, 31.05.-04.06.2021}, month = {06}, title = {Investigating the Effect of Enzymatically Induced Carbonate Precipitation on Hydraulic Properties}, type = {Vortrag}, url = {https://events.interpore.org/event/25/}, year = 2021 }
Link
https://events.interpore.org/event/25/
Hommel, J., Akyel, A., Phillips, A. J., Gerlach, R., Cunningham, A. B., & Class, H. (2021). Enzymatically induced calcite precipitation: model development and experiments. In Interpore German Chapter 01.02.2021-02.02.2021, Stuttgart/online. https://www.iws.uni-stuttgart.de/lh2/publications/presentations/2021/Hommel-InterporeGermanChapter-2021.pdf
- BibTeX
- Link
BibTeX
@misc{hommel-interpore-german-chapter-2021, author = {Hommel, Johannes and Akyel, Arda and Phillips, Adrienne J. and Gerlach, Robin and Cunningham, Alfred B. and Class, Holger}, booktitle = {Interpore German Chapter 01.02.2021-02.02.2021, Stuttgart/online}, month = {01}, title = {Enzymatically induced calcite precipitation: model development and experiments}, type = {Konferenzbeitrag}, url = {https://www.iws.uni-stuttgart.de/lh2/publications/presentations/2021/Hommel-InterporeGermanChapter-2021.pdf}, year = 2021 }
Link
https://www.iws.uni-stuttgart.de/lh2/publications/presentations/2021/Hommel-InterporeGermanChapter-2021.pdf
Hommel, J., Akyel, A., Phillips, A. J., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2020). A Numerical Model for Enzymatically Induced Calcite Precipitation. In Interpore 12th Annual Meeting and Jubilee 2020, 30.08.2020 - 04.09.2020, Qingdao/online.
- BibTeX
BibTeX
@misc{hommel-interpore-2020, author = {Hommel, Johannes and Akyel, Arda and Phillips, Adrienne J. and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {Interpore 12th Annual Meeting and Jubilee 2020, 30.08.2020 - 04.09.2020, Qingdao/online}, month = {08}, title = {A Numerical Model for Enzymatically Induced Calcite Precipitation}, type = {Konferenzbeitrag}, year = 2020 }
Hommel, J., Weinhardt, F., Gerlach, R., Steeb, H., & Class, H. (2019). Investigating induced calcium carbonate precipitation: changing hydraulic properties. In Interpore 11th Annual Meeting 2019, 06.05.2019 - 10.05.2019, Valencia.
- BibTeX
BibTeX
@misc{hommel-interpore-2019, author = {Hommel, Johannes and Weinhardt, Felix and Gerlach, Robin and Steeb, Holger and Class, Holger}, booktitle = {Interpore 11th Annual Meeting 2019, 06.05.2019 - 10.05.2019, Valencia}, month = {05}, title = {Investigating induced calcium carbonate precipitation: changing hydraulic properties}, type = {Konferenzbeitrag}, year = 2019 }
Hommel, J., Phillips, A. J., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2019). Modeling porous medium modification through induced calcite precipitation at field scale. In EGU General Assembly 2019, 07.04.2019 - 12.04.2019, Vienna.
- BibTeX
BibTeX
@misc{hommel-egu-2019, author = {Hommel, Johannes and Phillips, Adrienne J. and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {EGU General Assembly 2019, 07.04.2019 - 12.04.2019, Vienna}, month = {04}, title = {Modeling porous medium modification through induced calcite precipitation at field scale}, type = {Konferenzbeitrag}, year = 2019 }
Hommel, J., & Gerlach, R. (2018). Induced calcium carbonate precipitation and two-phase flow properties. In SFB 1313 Status Seminar 2018, 24.09.2018 - 26.09.2018, Hechingen.
- BibTeX
BibTeX
@misc{NULL, author = {Hommel, Johannes and Gerlach, Robin}, booktitle = {SFB 1313 Status Seminar 2018, 24.09.2018 - 26.09.2018, Hechingen}, month = {09}, title = {Induced calcium carbonate precipitation and two-phase flow properties}, type = {Konferenzbeitrag}, year = 2018 }
Hommel, J. (2018). Investigating the impact of induced calcite precipitation on the capillary pressure- saturation relation: Experimental plans. In SFB 1313 Seminar 2018, 24.09.2018 - 26.09.2018, Hechingen. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2018/SFB1313_2018_assocC05_Hommel.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes}, booktitle = {SFB 1313 Seminar 2018, 24.09.2018 - 26.09.2018, Hechingen}, month = {09}, note = {, date=24.09.2018, IWS2ID=4547 }, title = {Investigating the impact of induced calcite precipitation on the capillary pressure- saturation relation: Experimental plans}, type = {Seminar}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2018/SFB1313_2018_assocC05_Hommel.pdf}, year = 2018 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2018/SFB1313_2018_assocC05_Hommel.pdf
Hommel, J., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2018). Modeling porous medium modification through induced calcite precipitation. In Interpore 10th Annual Meeting and Jubilee 2018, 14.05.2018 - 17.05.2018, New Orleans.
- BibTeX
BibTeX
@misc{NULL, author = {Hommel, Johannes and Phillips, Adrienne and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {Interpore 10th Annual Meeting and Jubilee 2018, 14.05.2018 - 17.05.2018, New Orleans}, month = {05}, note = {, date=16.05.2018, IWS2ID=4530 }, title = {Modeling porous medium modification through induced calcite precipitation}, type = {Konferenzbeitrag}, year = 2018 }
Hommel, J., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2017). Modeling porous medium modification through induced calcite precipitation. In 2nd SRP NUPUS Meeting, 09.10.2017 - 11.10.2017, Mühlhausen im Täle. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2017/GACM2017Hommel.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Phillips, Adrienne and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {2nd SRP NUPUS Meeting, 09.10.2017 - 11.10.2017, Mühlhausen im Täle}, month = {11}, note = {, date=10.11.2017, IWS2ID=4484 }, title = {Modeling porous medium modification through induced calcite precipitation}, type = {Konferenzbeitrag}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2017/GACM2017Hommel.pdf}, year = 2017 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2017/GACM2017Hommel.pdf
Mohajer, M., Hommel, J., Shuster, J., & Reith, F. (2017). Development and Implementation of a Gold Mobility Model. In Goldschmidt, 13.08.2017 - 18.08.2017, Paris, France. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2017/Goldschmidt2017Paris_Hommel_optimizedForPDF.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Mohajer, Maral and Hommel, Johannes and Shuster, Jeremiah and Reith, Frank}, booktitle = {Goldschmidt, 13.08.2017 - 18.08.2017, Paris, France}, month = {08}, note = {, date=18.08.2017, IWS2ID=4477 }, title = {Development and Implementation of a Gold Mobility Model}, type = {Konferenzbeitrag}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2017/Goldschmidt2017Paris_Hommel_optimizedForPDF.pdf}, year = 2017 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2017/Goldschmidt2017Paris_Hommel_optimizedForPDF.pdf
Hommel, J. (2016). New models for biomineralization processes. In 1st SRP NUPUS Meeting, 05.10.2016 - 07.10.2016, Mühlhausen im Täle. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/HommelNUPUS_Vortrag2016.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes}, booktitle = {1st SRP NUPUS Meeting, 05.10.2016 - 07.10.2016, Mühlhausen im Täle}, month = {10}, note = {, date=05.10.2016, IWS2ID=4396 }, title = {New models for biomineralization processes}, type = {Konferenzbeitrag}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/HommelNUPUS_Vortrag2016.pdf}, year = 2016 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/HommelNUPUS_Vortrag2016.pdf
Hommel, J., Ebigbo, A., Cunningham, A. B., Gerlach, R., Helmig, R., & Class, H. (2016). Field-scale modeling of microbially induced calcite precipitation. In Gordon Research Seminar on Flow and Transport in Permeable Media, 30.07.2016 - 31.07.2016, Girona, Spanien. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Gordon_2016.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Ebigbo, Anozie and Cunningham, Alfred B. and Gerlach, Robin and Helmig, Rainer and Class, Holger}, booktitle = {Gordon Research Seminar on Flow and Transport in Permeable Media, 30.07.2016 - 31.07.2016, Girona, Spanien}, month = {07}, note = {, date=31.07.2016, IWS2ID=4387 }, title = {Field-scale modeling of microbially induced calcite precipitation}, type = {Konferenzbeitrag}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Gordon_2016.pdf}, year = 2016 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Gordon_2016.pdf
Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2015). Finding a balance between accuracy and effort for modeling biomineralization. In IAMG 2015, 17th Annual Conference of the International Association for Mathematical Geosciences, 05.09.2015 - 13.09.2015, Freiberg. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/Hommel_IAMG_2015.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Ebigbo, Anozie and Gerlach, Robin and Cunningham, Alfred B. and Helmig, Rainer and Class, Holger}, booktitle = {IAMG 2015, 17th Annual Conference of the International Association for Mathematical Geosciences, 05.09.2015 - 13.09.2015, Freiberg}, month = {09}, note = {, date=07.09.2015, IWS2ID=3139 }, title = {Finding a balance between accuracy and effort for modeling biomineralization}, type = {Konferenzbeitrag}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/Hommel_IAMG_2015.pdf}, year = 2015 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/Hommel_IAMG_2015.pdf
Hommel, J. (2014). Modeling of microbially induced calcite precipitation. In Seminar des lehrstuhls für Angewandte Mathematik 1, 26.11.2014, Erlangen. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Erlangen_Hommel_2014.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes}, booktitle = {Seminar des lehrstuhls für Angewandte Mathematik 1, 26.11.2014, Erlangen}, month = {11}, note = {, date=26.11.2014, IWS2ID=3002 }, title = {Modeling of microbially induced calcite precipitation}, type = {Seminar}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Erlangen_Hommel_2014.pdf}, year = 2014 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Erlangen_Hommel_2014.pdf
Hommel, J., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2014). Modeling Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology. In Computational Methods in Water Resources XX. International Conference, 10.06.2014 - 13.06.2014, Stuttgart. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Hommel_CMWR2014.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes and Cunningham, Alfred B. and Helmig, Rainer and Ebigbo, Anozie and Class, Holger}, booktitle = {Computational Methods in Water Resources XX. International Conference, 10.06.2014 - 13.06.2014, Stuttgart}, month = {06}, note = {, date=10.06.2014, IWS2ID=2938 }, title = {Modeling Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology}, type = {Konferenzbeitrag}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Hommel_CMWR2014.pdf}, year = 2014 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Hommel_CMWR2014.pdf
Hommel, J. (2014). Field-scale investigation of microbially induced calcite precipitation using a numerical model. In NUPUS annual meeting 2014, 16.03.2014 - 19.03.2014, Freudenstadt. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/Hommel_NUPUS2014.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes}, booktitle = {NUPUS annual meeting 2014, 16.03.2014 - 19.03.2014, Freudenstadt}, month = {03}, note = {, date=17.03.2014, IWS2ID=3050 }, title = {Field-scale investigation of microbially induced calcite precipitation using a numerical model}, type = {Vortrag}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/Hommel_NUPUS2014.pdf}, year = 2014 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/Hommel_NUPUS2014.pdf
Hommel, J. (2013). Numerical investigation of microbially induced calcite precipitation as a leakage mitigation technology. In EGU General Assembly 2013, 07.04.2013 - 12.04.2013, Wien, Österreich. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/EGU_Hommel_2013.pdf
- BibTeX
- Link
BibTeX
@misc{NULL, author = {Hommel, Johannes}, booktitle = {EGU General Assembly 2013, 07.04.2013 - 12.04.2013, Wien, Österreich}, month = {04}, note = {will be published in Energy Procedia, date=10.04.2013, IWS2ID=2821 }, title = {Numerical investigation of microbially induced calcite precipitation as a leakage mitigation technology}, type = {Vortrag}, url = {https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/EGU_Hommel_2013.pdf}, year = 2013 }
Link
https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/EGU_Hommel_2013.pdf

betreute studentische Arbeiten

Numerical Modeling of Biocement Production. (2022). (Masterarbeit). Universität Stuttgart, Institut für Wasser-und Umweltsystemmodellierung, Lehrstuhl für Hydromechanik und Hydrosystemmodellierung.
Modeling the use of microbially induced calcite precipitation for road construction. (2022). (Masterarbeit). Universität Stuttgart, Institut für Wasser-und Umweltsystemmodellierung, Lehrstuhl für Hydromechanik und Hydrosystemmodellierung.
Modeling calcite dissolution due to density-induced fingering of CO2-enriched water. (2021). (Master’s Thesis).
Experimentelle Untersuchung von induzerter Calcitausfällung. (2021). (Master’s Thesis).
Quantifying similarities between computational expensive reactive transport models. (2019). (Bachelorarbeit). Universität Stuttgart, Institut für Wasser-und Umweltsystemmodellierung, Lehrstuhl für Hydromechanik und Hydrosystemmodellierung.
Pore and pore-network scale modeling on realistic geometries extracted from CT images. (2019). (Masterarbeit). Universität Stuttgart, Institut für Wasser-und Umweltsystemmodellierung, Lehrstuhl für Hydromechanik und Hydrosystemmodellierung.
Sensitivitätsanalyse eines reaktiven Transportmodells. (2019). (Projektarbeit).
Implementierung eines numerischen Modells für den Transport von Tracerkomponenten in Zweiphasenströmungen. (2019). (Studienarbeit). Universität Stuttgart, Institut für Wasser-und Umweltsystemmodellierung, Lehrstuhl für Hydromechanik und Hydrosystemmodellierung.
Experimental and numerical investigation of enzymatically induced calcite precipitation in porous media. (2018). (Masterthesis).
Analyse der Möglichkeiten von Energiespeicherung durch Unterwasserdruckluftspeicherkraftwerke. (2018). (Bachelorarbeit). Universität Stuttgart, Institut für Wasser- und Umweltsystemmodellierung.
Analyse der Möglichkeiten von Energiespeicherung durch Windkraftanlagenpumpspeicherkraftwerke. (2018). (Bachelorarbeit). Universität Stuttgart, Institut für Wasser- und Umweltsystemmodellierung.
Parametersensitivitätsstudie für ein biogeochemisches Goldkreislaufmodell. (2018). (Bachelorarbeit). Universität Stuttgart, Institut für Wasser- und Umweltsystemmodellierung.
Analyse der Möglichkeiten von Energiespeicherung durch Hochhauspumpspeicherkraftwerke. (2017). (Bachelorarbeit). Universität Stuttgart, Institut für Wasser- und Umweltsystemmodellierung.
Rekonstruktion einer Hydraulis: Nachbau einer römischen, hydraulisch betriebenen Orgel. (2017). (Bachelorarbeit). Universität Stuttgart, Institut für Wasser- und Umweltsystemmodellierung.
Development of a Numerical Model for Microbial Precipitation of Metallic Gold. (2017). (Masterthesis).
Modeling microbially enhanced coal-bed methane production. (2017). (Masterthesis).
Entwicklung eines Programms zur Auslegung eines hydraulischen Widders. (2017). (Bachelorarbeit). Universität Stuttgart, Institut für Wasser- und Umweltsystemmodellierung.
Development of a numerical model for thermal-ureolysis-induced calcite precipitation. (2016). (Masterthesis).
Entwicklung und Auslegung eines thermischen Frostschutzverfahrens. (2015). (Bachelorarbeit). Universität Stuttgart, Institut für Wasser- und Umweltsystemmodellierung.
Development of a model for microbially enhanced coalbed methane. (2015). (Masterthesis).
Numerische Untersuchung des Einflusses von Heterogenitäten im porösen Medium auf mikrobiell induzierte Kalzitausfällung. (2015). (Bachelorarbeit). Universität Stuttgart, Institut für Wasser- und Umweltsystemmodellierung.
Kinetic approach for modeling salt precipitation in porous-media. (2014). (Independent-Study).
Numerical investigation of microbially induced calcite precipitation at field scale. (2014). (Independent-Study).
Investigation of a decoupling scheme for modeling reactive transport. (2014). (Masterthesis).
Comparison of different modelling approaches for reactive transport in porous media. (2013). (Bachelorarbeit). Universität Stuttgart, Institut für Wasserbau.

Aktuelle Forschungsprojekte

TWO-PHASE ICP 2: Prozess-spezifische Parametrisierung der Änderung hydraulischer poröser Medieneigenschaften durch biogeochemische Reaktionen
Laufzeit: 04/2021 - 01/2026
Abteilung: LH2
Leitung: Johannes Hommel
Finanzierung: DFG
SFB 1313, C04: Porenskalige und REV-skalige Ansätze zur Beschreibung von biologisch und chemisch induzierter Porenraumveränderung in porösen Medien
Laufzeit: 01/2018 - 12/2025
Abteilung: LH2
Leitung: Holger Class
Finanzierung: DFG

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