NUMERICAL STUDY OF THE RELATIONSHIP BETWEEN APPARENT SLIP LENGTH AND CONTACT ANGLE BY LATTICE BOLTZMANN METHOD

查看全文 作　　者：ZHANG Ren-[1]liang;DI Qin-[1]feng;WANG Xin-[1]liang;DING Wei-[1]peng;GONG [1]Wei

机构地区：[1]Shanghai Institute of Applied Mathematics and Mechanics and Shanghai Key Laboratory of Mechanics in Energy Engineering,Shanghai University,Shanghai 200072,China

出　　处：《Journal of Hydrodynamics》索引2012年第24卷第4期,共6页

基　　金：the National Natural Science Foundation of China (Grant No. 50874071);the National High Technology Research and Development of China (863 Program,Grant No. 2008AA06Z201);the Key Program of Science and Technology Commission of Shanghai Municipality (Grant No.071605102);the Leading Talent Funding of Shanghai 摘　　要：The apparent slip between solid wall and liquid is studied by using the Lattice Boltzmann Method (LBM) and theShan-Chen multiphase model in this paper. With a no-slip bounce-back scheme applied to the interface, flow regimes under differentwall wettabilities are investigated. Because of the wall wettability, liquid apparent slip is observed. Slip lengths for different wallwettabilities are found to collapse nearly onto a single curve as a function of the static contact angle, and thereby a relationshipbetween apparent slip length and contact angle is suggested. Our results also show that the wall wettability leads to the formation of alow-density layer between solid wall and liquid, which produced apparent slip in the micro-scale. 关键词：格子BOLTZMANN方法接触角滑移数值研究长度表观格子玻尔兹曼方法多相流模型

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NUMERICAL STUDY OF THE RELATIONSHIP BETWEEN APPARENT SLIP LENGTH AND CONTACT ANGLE BY LATTICE BOLTZMANN METHOD

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