期刊
TRANSPORT IN POROUS MEDIA
卷 94, 期 2, 页码 595-615出版社
SPRINGER
DOI: 10.1007/s11242-012-0057-2
关键词
Viscous flow; Granular material; Solid fluid coupling; Pore-network; Finite volumes
资金
- Grenoble Institute of Technology
- U.S. Department of Energy [DE-AC02-05CH11231]
We propose a method for effectively upscaling incompressible viscous flow in large random polydispersed sphere packings: the emphasis of this method is on the determination of the forces applied on the solid particles by the fluid. Pore bodies and their connections are defined locally through a regular Delaunay triangulation of the packings. Viscous flow equations are upscaled at the pore level, and approximated with a finite volume numerical scheme. We compare numerical simulations of the proposed method to detailed finite element simulations of the Stokes equations for assemblies of 8-200 spheres. A good agreement is found both in terms of forces exerted on the solid particles and effective permeability coefficients.
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