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首页> 外文期刊>Journal of Computational Physics >A PARALLEL INCOMPRESSIBLE FLOW SOLVER PACKAGE WITH A PARALLEL MULTIGRID ELLIPTIC KERNEL
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A PARALLEL INCOMPRESSIBLE FLOW SOLVER PACKAGE WITH A PARALLEL MULTIGRID ELLIPTIC KERNEL

机译：具有并行多重网格椭圆核的并行不可压缩流求解器软件包

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The development and applications of a parallel, time-dependent incompressible Navier-Stokes flow solver and a parallel multigrid elliptic kernel are described. The flow solver is based on a second-order projection method applied to a staggered finite-difference grid. The multigrid algorithms implemented in the parallel elliptic kernel, which is needed by the flow solver, are V-cycle and full V-cycle schemes. A grid-partition strategy is used in the parallel implementations of both the flow solver and the multigrid elliptic kernel on all fine and coarse grids. Numerical experiments and parallel performance tests show the parallel solver package is numerically stable, physically robust, and computationally efficient, Both the multigrid elliptic kernel and the flow solver scale very well to a large number of processors on Intel Paragon and Gray T3D for computations with moderate granularity. The solver package has been carefully designed and coded so that it can be easily adapted to solving a variety of interesting two- and three-dimensional flow problems. The solver package is portable to parallel systems that support MPI, PVM, and NX for interprocessor communications. (C) 1996 Academic Press, Inc. [References: 14]
机译：描述了并行的，与时间有关的不可压缩的Navier-Stokes流量求解器和并行的多网格椭圆核的开发和应用。流动求解器基于应用于交错有限差分网格的二阶投影方法。流量求解器需要在并行椭圆核中实现的多网格算法是V循环和完整V循环方案。在所有细网格和粗网格上，流求解器和多网格椭圆核的并行实现中都使用了网格分区策略。数值实验和并行性能测试表明，并行求解器软件包在数值上稳定，物理健壮且计算效率高。多网格椭圆形内核和流求解器均可很好地扩展到Intel Paragon和Gray T3D上的大量处理器，以进行中等程度的计算粒度。求解器程序包经过精心设计和编码，因此可以轻松地应用于解决各种有趣的二维和三维流动问题。该求解程序包可移植到支持MPI，PVM和NX进行处理器间通信的并行系统。 （C）1996 Academic Press，Inc. [参考：14]

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