CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2019, Vol. 36 ›› Issue (5): 551-558.DOI: 10.19596/j.cnki.1001-246x.7922

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Feasibility of Simulation on Flow in Porous Media with Gas Kinetic Scheme

ZENG Wei, CHEN Songze, GUO Zhaoli   

  1. State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan Hubei 430074, China
  • Received:2018-07-06 Revised:2018-10-24 Online:2019-09-25 Published:2019-09-25

Abstract: We extend gas kinetic scheme (GKS) to low-speed porous media flow, and test feasibility and effectiveness of the method. It shows that GKS is second-order accurate in space and is capable of predicting permeability of porous media. Compared with single-relaxation-time lattice Boltzmann method, GKS implements precisely no slip boundary condition, thus reflects correctly characteristics of viscosity-independent permeability. For complex flow in Berea sandstone slice structure, simulation results are in good agreement with experimental data, and permeability is calculated accurately. A criteria of Ma number in GKS is proposed for Darcy flow. It shows that GKS could be a promising scheme for porous media flows.

Key words: gas kinetic scheme, porous media, pore-scale, permeability

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