Abstract: LBM is a recent developed method with advantage of high parallel performance and easy boundary treatment. For curvilinear boundary, a new method has been adopted for simulation of flow around cylinder with Re=100. The results fairly agree with the classical one. Further, simulation of flow around groups of cylinders is presented. All of the results show that the method for curvilinear boundary is effective and the performance of parallel computation is efficient.

Key words: lattice Boltzmann method, boundary treatment, flow around cylinder, parallel computation

摘要： Lattice Boltzmann Method(LBM)是一种近年来发展的一种数值方法。它具有并行效率高，边界处理简单的特点。本文采用一种能对曲线边界进行较好处理的方法，用LBM对Re=100圆柱绕流进行了计算，计算结果和经典结果一致。进一步，对柱群间复杂流场做了模拟，结果表明，此方法在处理复杂边界是有效的，并且具有较好的并行效率。

关键词: 格子玻尔兹曼方法, 边界处理, 圆柱绕流, 并行计算