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《Chinese Journal of Computational Physics》 2011-02
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Lattice Boltzmann Simulation of Flow in a Micro-channel

ZHANG Renliang1,2,DI Qinfeng1,2,WANG Xinliang1,2,GU Chunyuan1,2,WANG Wenchang1,2(1.Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai 200072,China;2.Shanghai Key Laboratory of Mechanics in Energy and Environment Engineering,Shanghai University,Shanghai 200072,China)  
A droplet with constant driving force moving inside a micro-channel is studied in a lattice Boltzmann model and a Shan-Chen multiphase model.Flow regimes under different wall wettability and topography are investigated.It is clarified that hydrophobic surface with certain roughness can reduce fluid flow resistance.It is found that flow behaviors are strongly affected by wall wettability and surface roughness.It shows that the method is efficient and accurate.It has good prospect on the study of drag reduction of microscopic seepage of reservoirs.
【Fund】: 国家自然科学基金(50874071);; 国家863计划项目(2008AA06Z201);; 上海市科委重点科技攻关计划(071605102);; 上海市教委科研创新项目(08ZZ45);; 长江学者和创新团队发展计划(IRT0844);; 上海大学创新基金资助项目
【CateGory Index】: TE357.6
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