摘要
在分布式存储网络异构编程PVM环境下 ,本文将原串行计算程序改造为并行计算程序 ,提高了计算效率。利用非结构网格 ,对球体及航天飞机外形绕流流场进行了计算 ,取得了较好的性能结果。最后将该方法应用于混合网格的计算 ,求解了多种复杂外形的无粘绕流 ,如翼身组合体和DF2 1C导弹 ,得到了满意的结果。
A multi block parallel computing method is presented in this paper based on the existed serial NND finite volume method. The parallel code is performed on the distributed memory network with heterogeneous PVM platform. The numerical experiments include supersonic flow over a sphere and hypersonic flow over a space shuttle on unstructured grids, transonic flow over a wing body joint on Cartesian/unstructured grids, and supersonic flow over the missile on body fitted structured/unstructured grids. The numerical results demonstrate that the capability of simulating complex flow fields with complicate boundaries efficiently, accurately and robustly.
出处
《空气动力学学报》
CSCD
北大核心
2002年第z1期14-20,共7页
Acta Aerodynamica Sinica
基金
国防科学技术预先研究基金资助项目
国家自然科学基金 (86 330 6主题 )资助项目
关键词
并行计算
非结构网格
混合网格
欧拉方程
parallel calculations
unstructured grids
structured/unstructured grids
Euler equations
