非结构网格及混合网格复杂无粘流场并行计算方法研究  

Parallel numerical simulations of complex inviscid flows on unstructured and structured/unstructured hybrid grids

作　　者：张来平[1] 徐庆新[1] 张涵信[1] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《空气动力学学报》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

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.

关 键 词：并行计算 非结构网格 混合网格 欧拉方程 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]