TY - JOUR
T1 - Combined numerical and experimental study of microstructure and permeability in porous granular media
AU - Eichheimer, Philipp
AU - Thielmann, Marcel
AU - Fujita, Wakana
AU - Golabek, Gregor J.
AU - Nakamura, Michihiko
AU - Okumura, Satoshi
AU - Nakatani, Takayuki
AU - Kottwitz, Maximilian O.
N1 - Funding Information:
This open-access publication was funded by the University of Bayreuth.
Funding Information:
Acknowledgements. Additionally, this work has been supported by the JSPS Japanese–German graduate externship. Marcel Thielmann was supported by the Bayerisches Geoinstitut Visitors Program. Calculations were performed on the clusters btrzx2 at the University of Bayreuth and Mogon II at Johannes Gutenberg University Mainz. We thank Kirill Gerke and an anonymous reviewer for their constructive comments that helped to improve the paper considerably.
Funding Information:
Financial support. This research has been supported by the DFG
Publisher Copyright:
© 2020 Author(s).
PY - 2020/6/25
Y1 - 2020/6/25
N2 - Fluid flow on different scales is of interest for several Earth science disciplines like petrophysics, hydrogeology and volcanology. To parameterize fluid flow in large-scale numerical simulations (e.g. groundwater and volcanic systems), flow properties on the microscale need to be considered. For this purpose experimental and numerical investigations of flow through porous media over a wide range of porosities are necessary. In the present study we sinter glass bead media with various porosities and measure the permeability experimentally. The microstructure, namely effective porosity and effective specific surface, is investigated using image processing. We determine flow properties like tortuosity and permeability using numerical simulations. We test different parameterizations for isotropic low-porosity media on their potential to predict permeability by comparing their estimations to computed and experimentally measured values.
AB - Fluid flow on different scales is of interest for several Earth science disciplines like petrophysics, hydrogeology and volcanology. To parameterize fluid flow in large-scale numerical simulations (e.g. groundwater and volcanic systems), flow properties on the microscale need to be considered. For this purpose experimental and numerical investigations of flow through porous media over a wide range of porosities are necessary. In the present study we sinter glass bead media with various porosities and measure the permeability experimentally. The microstructure, namely effective porosity and effective specific surface, is investigated using image processing. We determine flow properties like tortuosity and permeability using numerical simulations. We test different parameterizations for isotropic low-porosity media on their potential to predict permeability by comparing their estimations to computed and experimentally measured values.
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U2 - 10.5194/se-11-1079-2020
DO - 10.5194/se-11-1079-2020
M3 - Article
AN - SCOPUS:85087543338
SN - 1869-9510
VL - 11
SP - 1079
EP - 1095
JO - Solid Earth
JF - Solid Earth
IS - 3
ER -