计算物理 ›› 2006, Vol. 23 ›› Issue (3): 281-289.

• 研究论文 • 上一篇    下一篇

求解可压Navier-Stokes方程的对称超紧致差分格式及其并行算法

郭晓虎1,2, 张林波1   

  1. 1. 科学与工程计算国家重点实验室, 中国科学院计算数学与科学工程计算研究所, 北京 100080;
    2. 北京大学数学科学学院, LMAM, 北京 100871
  • 收稿日期:2004-12-27 修回日期:2005-08-29 出版日期:2006-05-25 发布日期:2006-05-25
  • 作者简介:郭晓虎(1975-),男,河北正定,博士,从事CFD数值模拟,医学图像处理及并行算法方面的研究,北京2719信箱100080.
  • 基金资助:
    973计划(G1999032505,2005CB321702)资助项目

Symmetric Super Compact Difference Scheme of the Navier-Stokes Equation and Its Parallel Algorithm

GUO Xiao-hu1,2, ZHANG Lin-bo1   

  1. 1. Institute of Computational Mathematics and Scientific/Engineering Computing, Beijing 100080, China;
    2. LMAM, Mathematic Sience, Peking University, Beijing 100871, China
  • Received:2004-12-27 Revised:2005-08-29 Online:2006-05-25 Published:2006-05-25

摘要: 考查了超紧致差分方法,并将其精度同传统差分格式和紧致差分格式做了比较,结果显示超紧致方法具有良好求解效率.用分块流水线方法设计了超紧致差分格式的并行算法,进行数值实验及并行性能分析.

关键词: 可压缩, 多尺度, 超紧致差分格式, 并行算法, 分块流水线算法

Abstract: We examine the super compact symmetric finite difference scheme (SCSFD) and compare it with traditional difference methods and compact difference methods. The result shows high efficiency of SCSFD. According to the characteristics of the algorithm, a parallel algorithm named block pipelined method for three-dimensional compressible Navier-Stokes equations using SCSFD is designed and its parallel performance is analysed. Numerical experiments are carried out.

Key words: compressible, multi-scales, super compact symmetric finite difference scheme, parallel algorithm, block pipelined method

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