基于并行BICGSTAB的不可压流场计算方法  

作　　者：陈涛[1] 

机构地区：[1]南京航空航天大学,南京210016

出　　处：《科技创新与应用》2024年第25期149-152,156,共5页Technology Innovation and Application

摘　　要：不可压缩流动广泛存在于日常生活及工程应用之中,随着数值模拟规模不断扩大,CFD算法越来越重视并行计算。该文采用SIMPLE算法对不可压流场进行求解,为求解算法中的大型稀疏矩阵,该文发展一套基于MPI框架的并行BICGSTAB矩阵求解方法。最后采用定常顶盖驱动流算例及非定常圆柱绕流算例验证并行算法的可行性及准确性。Incompressible flows are prevalent in daily life and engineering applications.With the continuous expansion of numerical simulation scales,CFD algorithms increasingly emphasize parallel computing.This paper utilizes the SIMPLE algorithm to solve incompressible flow.We developed a parallel BICGSTAB matrix solver based on the MPI framework to address the large sparse matrices in the algorithm.Finally,the feasibility and accuracy of the parallel algorithm are validated using the steady lid-driven cavity flow and unsteady flow around cylinder test cases.

关 键 词：不可压缩流动 SIMPLE算法 BICGSTAB算法 并行计算 数值模拟 

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]