用格子Boltzmann方法模拟壁面微结构对管流特性的影响  

Lattice Boltzmann Simulation of Flow in a Micro-channel

作　　者：张任良[1,2] 狄勤丰[1,2] 王新亮[1,2] 顾春元[1,2] 王文昌[1,2] 

机构地区：[1]上海大学,上海市应用数学和力学研究所,上海200072 [2]上海市力学在能源工程中的应用重点实验室,上海200072

出　　处：《计算物理》2011年第2期225-229,共5页Chinese Journal of Computational Physics

基　　金：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

摘　　要：采用格子Boltzmann方法和Shan-Chen多相流模型,模拟液滴在常力驱动下在微管道内的流动,研究微孔道壁面润湿性和几何结构对降压增注效果的影响.阐明具有一定粗糙度的疏水表面阻力减小的原因,研究表明,壁面润湿性和粗糙度对管流特性有显著的影响,同时也表明,用Lattice Boltzmann方法模拟,具有相当精确的可预测性,在石油储层微观渗流减阻机制研究方面有很好的应用前景,其可为研究纳米降压增注效果提供有用工具.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.

关 键 词：减阻 润湿性 纳米颗粒 多相流 LATTICE Boltzmann模型 

分 类 号：TE348[石油与天然气工程—油气田开发工程]