Inhalt
Porosität und Permeabilität sind zwei sehr wesentliche hydraulische Eigenschaften zur Charakteri-sierung von Strömungen in porösen Medien. Verschiedene Prozesse können Veränderungen des Porenraums und letztendlich dieser hydraulischen Eigenschaften hervorrufen. Dieses Projekt unter-sucht zunächst vor allem Fluid-Feststoff-Grenzflächen, die als Folge von mikrobiellen Aktivitäten Veränderungen unterliegen. Diese Veränderungen müssen messtechnisch erfasst und mit Hilfe von numerischen Simulationen auf den relevanten Skalen interpretiert werden. Des Weiteren muss dazu die Effizienz der dafür benötigten komplexen Simulationsmethoden verbessert werden.
Leiter
apl. Prof. Dr.-Ing. Holger Class
Bearbeiter
Dr.-Ing. Johannes Hommel
Dr.-Ing. Martin Beck (bis April 2019)
Dr.-Ing. Felix Weinhardt
Kerem Bozkurt (M.Sc.)
Abteilung
Zeitraum
01/2018 - 12/2025
Projektbezogene Veröffentlichungen
(Zeitschriften-) Aufsätze
- Class, H., Keim, L., Schirmer, L., Strauch, B., Wendel, K., & Zimmer, M. (2023). Seasonal Dynamics of Gaseous CO2 Concentrations in a Karst Cave Correspond with Aqueous Concentrations in a Stagnant Water Column. Geosciences, 13, 51. https://doi.org/10.3390/geosciences13020051
- 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
- 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
- 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
- Wagner, A., Eggenweiler, E., Weinhardt, F., Trivedi, Z., Krach, D., Lohrmann, C., Jain, K., Karadimitriou, N., Bringedal, C., Voland, P., Holm, C., Class, H., Steeb, H., & Rybak, I. (2021). Permeability Estimation of Regular Porous Structures: A Benchmark for Comparison of Methods. Transport in Porous Media, 138(1), Article 1. https://doi.org/10.1007/s11242-021-01586-2
- Weinhardt, F., Class, H., Dastjerdi, S. V., Karadimitriou, N., Lee, D., & Steeb, H. (2021). Experimental Methods and Imaging for Enzymatically Induced Calcite Precipitation in a microfluidic cell. Water Resources Research, 57, e2020WR029361. https://doi.org/doi.org/10.1029/2020WR029361
- 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
- Class, H., Bürkle, P., Sauerborn, T., Trötschler, O., Strauch, B., & Zimmer, M. (2021). On the Role of Density-Driven Dissolution of CO2 in Phreatic Karst Systems. Water Resources Research, 57(12), Article 12. https://doi.org/10.1029/2021WR030912
Datensätze
- Keim, L., & Class, H. (2024). Replication Code for: Rayleigh invariance allows the estimation of effective CO2 fluxes due to convective dissolution into water-filled fractures. DaRUS. https://doi.org/10.18419/darus-4089
- Keim, L., & Class, H. (2024). Replication Data for: Rayleigh invariance allows the estimation of effective CO2 fluxes due to convective dissolution into water-filled fractures. DaRUS. https://doi.org/10.18419/darus-4143
- 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
- Keim, L., Class, H., Schirmer, L., Wendel, K., Strauch, B., & Zimmer, M. (2023). Data for: Measurement Campaign of Gaseous CO2 Concentrations in a Karst Cave with Aqueous Concentrations in a Stagnant Water Column 2021-2022. DaRUS. https://doi.org/10.18419/darus-3271
- Keim, L., Class, H., Schirmer, L., Strauch, B., Wendel, K., & Zimmer, M. (2023). Code for: Seasonal Dynamics of Gaseous CO2 Concentrations in a Karst Cave Correspond With Aqueous Concentrations in a Stagnant Water Column. DaRUS. https://doi.org/10.18419/darus-3276
- Weinhardt, F., Deng, J., Steeb, H., & Class, H. (2022). Optical Microscopy and log data of Enzymatically Induced Calcite Precipitation (EICP) in microfluidic cells (Quasi-2D-structure). DaRUS. https://doi.org/10.18419/darus-1799
- 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
- Weinhardt, F., Class, H., Vahid Dastjerdi, S., Karadimitriou, N., Lee, D., & Steeb, H. (2021). Optical Microscopy and pressure measurements of Enzymatically Induced Calcite Precipitation (EICP) in a microfluidic cell. DaRUS. https://doi.org/10.18419/darus-818
- Vahid Dastjerdi, S., Steeb, H., Ruf, M., Lee, D., Weinhardt, F., Karadimitriou, N., & Class, H. (2021). micro-XRCT dataset of Enzymatically Induced Calcite Precipitation (EICP) in a microfluidic cell. DaRUS. https://doi.org/10.18419/darus-866
Publikationen
(Zeitschriften-) Aufsätze
- 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
- 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
- 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
- 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
- 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
- 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
- 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
Datensätze
- 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
- 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
- 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
- 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
- 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
- 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
Kontakt
Holger Class
apl. Prof. Dr.-Ing.Kommissarischer Leiter des Lehrstuhls

Johannes Hommel
Dr.-Ing.wissenschaftlicher Mitarbeiter
