Hierarchical porous media with multiple separate spatial scales are ubiquitous in substructures, unconventional strata, chemical engineering systems, energy storage, etc. The development of a highly accurate and highly efficient prediction model for gas transport in these multiscale porous media is of great importance for structural optimization design but remains an open research topic. In this study, we conduct a detailed multi-scale analysis of steady-state gas transport in a multiscale microporous matrix using the iterated asymptotic homogenization method. The upscaled permeability models and the governing equations for gas flow in the continuum and slip flow regimes in multiscale porous media with more than three separate spatial scales are derived accordingly. The accuracy and reliability of the developed models are confirmed and verified by the results of high-fidelity direct numerical simulation. The contribution of the first-order auxiliary cell functions to the upscaled permeability of porous media with different configurations is analyzed in detail, which provides a fundamental understanding of how these heterogeneities at each scale affect the macroscopic flow resistance and equivalent permeability. We also analyze the differences between the low-order and high-order multiscale models and the contrast between the gas transport processes in a steady and transient state. This work guides establishing highly efficient prediction models for gaseous microflows in complex porous media with arbitrary multiscale heterogeneities.
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November 2024
Research Article|
November 07 2024
Upscaled permeability for gaseous microflows in porous media with arbitrary multiscale heterogeneities
Hong Zuo (左鸿)
;
Hong Zuo (左鸿)
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing)
1
State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
, Wuhan 430071, China
2
School of Mechanics and Civil Engineering, China University of Mining and Technology
, Xuzhou 221116, China
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Shouchun Deng (邓守春)
;
Shouchun Deng (邓守春)
(Project administration, Supervision, Writing – review & editing)
1
State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
, Wuhan 430071, China
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Haibo Li (李海波);
Haibo Li (李海波)
(Project administration, Resources, Software, Writing – review & editing)
1
State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
, Wuhan 430071, China
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Ying Yin (殷英)
;
Ying Yin (殷英)
a)
(Conceptualization, Funding acquisition, Resources, Writing – review & editing)
3
Shenzhen Automotive Research Institute, Beijing Institute of Technology
, Shenzhen 518118, Guangdong, China
a)Author to whom correspondence should be addressed: yinyingupc@gmail.com
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Jiwei Dong (董纪伟);
Jiwei Dong (董纪伟)
(Formal analysis, Methodology, Writing – review & editing)
2
School of Mechanics and Civil Engineering, China University of Mining and Technology
, Xuzhou 221116, China
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Tao Zhang (张涛)
Tao Zhang (张涛)
(Software, Visualization, Writing – review & editing)
4
National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
, Chengdu 610500, China
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a)Author to whom correspondence should be addressed: yinyingupc@gmail.com
Physics of Fluids 36, 113108 (2024)
Article history
Received:
August 11 2024
Accepted:
October 15 2024
Citation
Hong Zuo, Shouchun Deng, Haibo Li, Ying Yin, Jiwei Dong, Tao Zhang; Upscaled permeability for gaseous microflows in porous media with arbitrary multiscale heterogeneities. Physics of Fluids 1 November 2024; 36 (11): 113108. https://doi.org/10.1063/5.0232987
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