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A pore-scale numerical model for non-Darcy fluid flow through rough-walled fractures
AbstractThis paper aims at developing a pore-scale numerical model for non-Darcy fluid flow through rough-walled fractures. A simple general relationship between the local hydraulic conductivity and the flow velocity is proposed. A new governing equation for non-Darcy fluid flow through rough-walled fractures is then derived by introducing this relationship into the Reynolds equation. Based on the non-linear finite element method, a self-developed code is used to simulate the non-Darcy fluid flow through fractures. It is found that the macroscopic results obtained by the numerical simulation agree well with the experimental results. Furthermore, some interesting experimental observations can be reproduced.
A pore-scale numerical model for non-Darcy fluid flow through rough-walled fractures
AbstractThis paper aims at developing a pore-scale numerical model for non-Darcy fluid flow through rough-walled fractures. A simple general relationship between the local hydraulic conductivity and the flow velocity is proposed. A new governing equation for non-Darcy fluid flow through rough-walled fractures is then derived by introducing this relationship into the Reynolds equation. Based on the non-linear finite element method, a self-developed code is used to simulate the non-Darcy fluid flow through fractures. It is found that the macroscopic results obtained by the numerical simulation agree well with the experimental results. Furthermore, some interesting experimental observations can be reproduced.
A pore-scale numerical model for non-Darcy fluid flow through rough-walled fractures
Zhang, Wei (author) / Dai, Beibing (author) / Liu, Zhen (author) / Zhou, Cuiying (author)
Computers and Geotechnics ; 87 ; 139-148
2017-02-13
10 pages
Article (Journal)
Electronic Resource
English
Non-Darcy flow , Pore-scale , Seepage , Fracture , Numerical , Model
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