LBM关于移动边界的处理

jonathan_wangy

用MRT-LBM（D2Q9）计算圆柱绕流的振动，遇到两个问题：
1，,用Lallemand和Luo 2003 JCP的方法处理移动边界，但是看的不是很明白（关于插值的那部分）。
2，用Caiazzo于2008年的analysis of lattice nodes initialisation in moving boundary problem处理由固体格点变为流体格点的粒子的分布函数。
不知有谁做过类似问题，想请教。

hawlin

Luo 老师那篇文章讲的很详细啊。我做移动边界都是按照Luo老师的二阶插值来做的。

jonathan_wangy

不知能否留个你的联系方式？

luo@odu.edu

Two points:

1) The interpolations in the original paper by Lallemand and myself can be improved. That point was not investigated thoroughly in our paper.

2) You can also use immersed boundary method (IBM) instead of interpolations. IBM is simpler, although it may not be as accurate as interpolations + bounce-back BCs.

See the following reference:

Y. Peng and L.-S. Luo.
A comparative study of immersed-boundary and interpolated bounce-back methods in LBE.
Progress in Computational Fluid Dynamics 8(1-4):156-167 (2008).

which can be download from my website.