J
Johannes Hommel
Researcher at University of Stuttgart
Publications - 20
Citations - 509
Johannes Hommel is an academic researcher from University of Stuttgart. The author has contributed to research in topics: Porosity & Porous medium. The author has an hindex of 9, co-authored 17 publications receiving 293 citations.
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Journal ArticleDOI
Porosity–Permeability Relations for Evolving Pore Space: A Review with a Focus on (Bio-)geochemically Altered Porous Media
TL;DR: In this article, a review of porosity-permeability relations in simulation models on the REV scale is presented, with a focus on the porosity at which the porous medium becomes impermeable.
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A revised model for microbially induced calcite precipitation: Improvements and new insights based on recent experiments
Johannes Hommel,Ellen G. Lauchnor,Adrienne J. Phillips,Robin Gerlach,Alfred B. Cunningham,Rainer Helmig,Anozie Ebigbo,Holger Class +7 more
TL;DR: In this paper, the model for microbially induced calcite precipitation (MICP) has been improved based on new insights obtained from experiments and model calibration, which has allowed for a more precise quantification of the relevant parameters as well as simplification of reaction kinetics in the equations of the model.
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DuMux 3 – an open-source simulator for solving flow and transport problems in porous media with a focus on model coupling
Timo Koch,Dennis Gläser,Kilian Weishaupt,Sina Ackermann,Martin Beck,Beatrix Becker,Samuel Burbulla,Holger Class,Edward Coltman,Simon Emmert,Thomas Fetzer,Christoph Grüninger,Katharina Heck,Johannes Hommel,Theresa Kurz,Melanie Lipp,Farid Mohammadi,Samuel Scherrer,Martin Schneider,Gabriele Seitz,Leopold Stadler,Martin Utz,Felix Weinhardt,Bernd Flemisch +23 more
TL;DR: version 3 of the open-source simulator for flow and transport processes in porous media DuMu introduces a more consistent abstraction of finite volume schemes and a new framework for multi-domain simulations.
Journal ArticleDOI
Field-scale modeling of microbially induced calcite precipitation
Alfred B. Cunningham,Holger Class,Anozie Ebigbo,Robin Gerlach,Adrienne J. Phillips,Johannes Hommel +5 more
TL;DR: A comprehensive Darcy-scale model has been developed by Ebigbo et al. as mentioned in this paper and validated at different scales of observation using laboratory experimental systems at the Center for Biofilm Engineering (CBE), Montana State University (MSU).
Journal ArticleDOI
Investigating the Influence of the Initial Biomass Distribution and Injection Strategies on Biofilm-Mediated Calcite Precipitation in Porous Media
Johannes Hommel,Ellen G. Lauchnor,Robin Gerlach,Alfred B. Cunningham,Anozie Ebigbo,Rainer Helmig,Holger Class +6 more
TL;DR: The results of this study indicate that, for the selected scenarios, both the initial amount and the distribution of attached biomass have minor influence on the Ca$$^{2+}$$2+ precipitation efficiency as well as the Distribution of the precipitates compared to the influence of the injection strategy.