计算物理 ›› 1997, Vol. 14 ›› Issue (6): 829-834.

• 论文 • 上一篇    下一篇

解流体力学方程组的一种隐式完全守恒差分格式

靳辉, 陈光南   

  1. 北京应用物理与计算数学研究所 100088
  • 收稿日期:1997-03-21 出版日期:1997-11-25 发布日期:1997-11-25
  • 基金资助:
    中国工程物理研究院科学技术基金

A FULLY CONSERVATIVE IMPLICIT DIFFERENCE SCHEME FOR FLUID DYNAMIC EQUATIONS

Jin Hui, Chen Guangnan   

  1. Institute of Applied Physics and Computational Mathematics, Beijing 100088
  • Received:1997-03-21 Online:1997-11-25 Published:1997-11-25

摘要: 对Lagrange非守恒流体力学方程组给出了一种隐式完全守恒差分格式,既保证了质量、动量和总能量守恒的差分近似,又能满足内能与动能的平衡特性,提高了数值解的精度。并用该格式对两个可压缩理想流体模型进行了数值计算,并与其它差分格式作了比较。

关键词: 流体力学方程组, 完全守恒差分格式, 迭代方法

Abstract: A fully conservative implicit difference scheme for Lagrangean form of the fluid dynamic equations is presented. This new scheme not only guarantees the laws of conservation of mass, momentum and total energy, but also satisfies the balance properties of inner energy and kinetic energy. Two numerical tests are calculated by this scheme as comparied with other difference schemes.

Key words: fully conservative difference scheme, iterative method, fluid dynamic equations

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