基于非结构自适应网格和嵌入边界法的残差格式研究（英文）
发布时间：2018-10-09 18:29
【摘要】：嵌入边界法由于在求解NS方程时能够简化网格生成问题而在计算流体领域受到越来越广泛的关注。简言之,嵌入边界法能够简化大变形和运动条件下多物理流动模拟、流固相互作用耦合问题,然而壁面边界条件的精确处理仍旧是该方法需要解决的问题。在本文工作中,为考虑壁面边界条件而在NS方程中增加了补偿项,同时采用非结构网格自适应技术保持了壁面边界条件的精度。
[Abstract]:The embedded boundary method has attracted more and more attention in the computational fluid field because it can simplify the mesh generation problem in solving the NS equation. In short, the embedded boundary method can simplify the multi-physical flow simulation under the condition of large deformation and motion, and the fluid-solid interaction coupling problem. However, the exact treatment of the wall boundary conditions is still a problem to be solved by the method. In this paper, in order to consider the wall boundary condition, the compensation term is added to the NS equation, and the unstructured mesh adaptive technique is used to maintain the accuracy of the wall boundary condition.
【作者单位】： Universit釨t
【基金】：carried out in the frame of the investments for the future,Programme IdEx Bordeaux,CPU (ANR-10-IDEX-03-02) supported by part by SNFS grant # 200021_153604/1
【分类号】：O241.8;O35
本文编号：2260338
[Abstract]:The embedded boundary method has attracted more and more attention in the computational fluid field because it can simplify the mesh generation problem in solving the NS equation. In short, the embedded boundary method can simplify the multi-physical flow simulation under the condition of large deformation and motion, and the fluid-solid interaction coupling problem. However, the exact treatment of the wall boundary conditions is still a problem to be solved by the method. In this paper, in order to consider the wall boundary condition, the compensation term is added to the NS equation, and the unstructured mesh adaptive technique is used to maintain the accuracy of the wall boundary condition.
【作者单位】： Universit釨t
【基金】：carried out in the frame of the investments for the future,Programme IdEx Bordeaux,CPU (ANR-10-IDEX-03-02) supported by part by SNFS grant # 200021_153604/1
【分类号】：O241.8;O35
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