FVM与LBM分区耦合模拟圆柱绕流  

Coupling between FVM and LBM for fluid flow around a circular cylinder

作　　者：栾辉宝[1] 徐辉[1] 陈黎[1] 陶文铨[1] 

机构地区：[1]西安交通大学,西安710049

出　　处：《计算力学学报》2011年第B04期97-101,共5页Chinese Journal of Computational Mechanics

基　　金：国家自然科学基金重点项目(50636050)资助

摘　　要：构造了用于模拟远场边界下圆柱绕流的有限容积法(FVM)与格子Boltzmann方法(LBM)的分区耦合模型。模型中,靠近圆柱处采用多块网格的LBM,远离圆柱处采用FVM,并将计算结果同适体网格LBM以及多块网格LBM进行了比较。结果表明,耦合模型能在保证计算精度的前提下,显著提高计算效率。A coupling between FVM and LBM （CFVLBM） model is proposed to resolve the flow around a circular cylinder with far-field boundary. LBM with multi-block grid is adopted near the cylinder, while FVM is used far away. Careful comparisons are done between the results of CFVLBM and that of previous publications as well as multi-block LBM, and body-fitted grid LBM. The results show that the CFVLBM are accurate and reliable. Meanwhile, the CFVLBM can greatly improve the computational efficiency.

关 键 词：格子BOLTZMANN方法 有限容积法 耦合 多尺度 重构算子 圆柱绕流 

分 类 号：O242[理学—计算数学]