基于并行BICGSTAB的不可压流场计算方法

【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。更多还原

【Abstract】 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 liddriven cavity flow and unsteady flow around cylinder test cases.更多还原