解非定常不可压Navier-Stokes方程的压力修正投影法的并行算法研究  

PARALLEL IMPLEMENTATION OF A PRESSURE-CORRECTION PROJECTION METHOD FOR THE UNSTEADY INCOMPRESSIBLE NAVIER-STOKES EQUATIONS

作　　者：鞠立力[1] 张林波[1] 

机构地区：[1]中国科学院计算数学与科学工程计算研究所科学与工程计算国家重点实验室

出　　处：《计算数学》1998年第3期325-336,共12页Mathematica Numerica Sinica

基　　金：国家自然科学基金!19772056;八六三资助

摘　　要：This paper deals with parallel implemeatation on distributed memory systemsof a pressure-correction projection scheme for the unsteady incompressible NavierStokes equations, the CNMT2 scheme (i.e., the Crank-Nickolson Modified Temamscheme Ⅱ), presented in [1, 2]. The key point of this work is to study parallelizationof the fast Poisson solver [2] and analyse its parallel efficiency. Various techniques,such as pipelining and canon cyclic algorithm, were used to ensure good parallel performance and scalability of the algorithm. The algorithm has been implemented using MPI message passing environment and numerical tests have been carried out on various computers, including the home made Dawn-1000 MPP system and workstation clusters.This paper deals with parallel implemeatation on distributed memory systemsof a pressure-correction projection scheme for the unsteady incompressible NavierStokes equations, the CNMT2 scheme (i.e., the Crank-Nickolson Modified Temamscheme Ⅱ), presented in [1, 2]. The key point of this work is to study parallelizationof the fast Poisson solver [2] and analyse its parallel efficiency. Various techniques,such as pipelining and canon cyclic algorithm, were used to ensure good parallel performance and scalability of the algorithm. The algorithm has been implemented using MPI message passing environment and numerical tests have been carried out on various computers, including the home made Dawn-1000 MPP system and workstation clusters.

关 键 词：非定常流 不可压缩流体 并行算法 N-S方程 

分 类 号：O357.1[理学—流体力学]