物理学报Issue(17)：1-15,15.DOI:10.7498/aps.63.174701
相同尺度下气泡与复杂壁面的耦合特性研究
Study on coupling characteristics b etween bubble and complex walls at the same scale
摘要
Abstract
A gas-liquid-solid three-phase coupling dynamic model is established using lattice Boltzmann method (LBM). Interaction between rising bubble and complex solid walls at the same scale is studied. Firstly, based on the viscous fluid theory, a group of lattice Boltzmann equations are developed to describe the gas-liquid two-phase campaign by considering the viscosity, surface tension, and gravity in the form of a LB discrete body force. At the same time, combined with the finite difference scheme, the half-way bounce back model in LBM is adopted to deal with the solid boundary condition. Then, under the conditions of different feature size ratios, the coupling characteristics between bubbles and plane wall, taking into consideration the effect of boundaries and curved wall, are studied using the newly built model. Results show that both the solid wall condition and the feature size ratio have significant nonlinear effects on bubble movement and topology changes. Finally, the effect of fluid properties on the coupling regularity of bubbles and complex walls is researched.关键词
格子Boltzmann方法/气泡/复杂壁面/气液固耦合Key words
lattice Boltzmann method/bubble/complex wall/gas-liquid-solid coupling引用本文复制引用
史冬岩,王志凯,张阿漫..相同尺度下气泡与复杂壁面的耦合特性研究[J].物理学报,2014,(17):1-15,15.基金项目
中组部青年拔尖人才支持计划,新世纪优秀人才支持计划(批准号：NCET100054)和国防基础科研(批准号：B2420133001)资助的课题 （批准号：NCET100054）
