Numerical Simulation on Non-Darcy Flow in a Single Rock Fracture Domain Inverted by Digital Images
Joint Authors
Wang, Zaiyong
Shao, Jianli
Zhang, Qi
Sun, Wenbin
Zhu, Xianxiang
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-06-27
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The influence of rock seepage must be considered in geotechnical engineering, and understanding the fluid flow in rock fractures is of great concern in the seepage effect investigation.
This study is aimed at developing a model for inversion of rock fracture domains based on digital images and further study of non-Darcy flow.
The visualization model of single rock fracture domain is realized by digital images, which is further used in flow numerical simulation.
We further discuss the influence of fracture domain geometry on non-Darcy flow.
The results show that it is feasible to study non-Darcy flow in rock fracture domains by inversion based on digital images.
In addition, as the joint roughness coefficient (JRC) increases or the fracture aperture decreases, distortion of the fluid flow path increases, and the pressure gradient loss caused by the inertial force increases.
Both coefficients of the Forchheimer equation decrease with increasing fracture aperture and increase with increasing JRC.
Meanwhile, the critical Reynolds number tends to decrease when JRC increases or the fracture aperture decreases, indicating that the fluid tends to non-Darcy flow.
This work provides a reference for the study of non-Darcy flow through rock fractures.
American Psychological Association (APA)
Shao, Jianli& Zhang, Qi& Sun, Wenbin& Wang, Zaiyong& Zhu, Xianxiang. 2020. Numerical Simulation on Non-Darcy Flow in a Single Rock Fracture Domain Inverted by Digital Images. Geofluids،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1165381
Modern Language Association (MLA)
Shao, Jianli…[et al.]. Numerical Simulation on Non-Darcy Flow in a Single Rock Fracture Domain Inverted by Digital Images. Geofluids No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1165381
American Medical Association (AMA)
Shao, Jianli& Zhang, Qi& Sun, Wenbin& Wang, Zaiyong& Zhu, Xianxiang. Numerical Simulation on Non-Darcy Flow in a Single Rock Fracture Domain Inverted by Digital Images. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1165381
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1165381