高超声速流动CFD并行计算研究

并行计算是CFD技术发展的必然趋势。本文从高超声速流动的特点出发,研究多分区结构网格下CFD并行计算方法,重点解决了区域之间流场信息的数据交换问题和边界处理问题,以保证流场的连续性。本文采用有限体积法求解高超声速流场,空间离散格式为Osher-Chakravarthy TVD格式,利用MPI消息传递模式完成数据交换,在自主搭建的PC集群上进行算例考核,验证了算法的可行性和正确性。

The CFD Parallel Computing Research on Hypersonic Flow

Parallel computing is a development trend of the CFD technology. In this paper, by considering the character-istics of hypersonic flow, we make a study of the CFD parallel computing method based on structural multi-partition grids. To preserve the continuity of the flow field, we focus on solving the problem of data exchange between the different zones and the treatment of boundary conditions. A finite volume method is introduced, and the total variation diminishing scheme proposed by Osher and Chakravarthy is adopted for spatial discretization. In this paper, MPI is used for data exchange, and then a series of tests are done on the PC cluster. The results show that the method is feasible and accurate.