计算物理 ›› 1990, Vol. 7 ›› Issue (1): 1-6.

• 论文 •    下一篇

二维浅水波问题Galerkin解法的质量集中法

吴克田   

  1. 上海计算技术研究所 200040
  • 收稿日期:1988-05-31 出版日期:1990-03-25 发布日期:1990-03-25

THE LUMPED MASS FINITE ELEMENT METHOD FOR TWO-DIMENSIONAL SHALLOW WATER WAVE PROBLEM

Wu Ketian   

  1. Shanghai Institute of computer Technology
  • Received:1988-05-31 Online:1990-03-25 Published:1990-03-25

摘要: 本文讨论了二维非定常流Galerkin解法的质量集中法,并用Galerkin法和质量集中法对长江口北支水域进行了模拟实算,并对两种方法的计算结果作了分析和比较。

Abstract: The lumped mass finite element method for two-dimensional unsteady flow is introduced. This method and the method in[1] are used in calculating the flow velocities and tide for the north branch of Yangtze River.The numerical result shows that the lumped mass finite element melhod need much less time and memory than the method[1] and retain previous accuracy.