西南石油大学学报(自然科学版) ›› 1990, Vol. 12 ›› Issue (2): 57-63.DOI: 10.3863/j.issn.1000-2634.1990.02.07

• 论文 • 上一篇    下一篇

恒定粘性不可压缩流体Navier-Stokes方程的非协调节点展开有限元逼近

蒲春生 张绍槐

  

  1. 完井中心
  • 收稿日期:1989-01-21 修回日期:1900-01-01 出版日期:1990-04-20 发布日期:1990-04-20

NONCONFORMING NODAL EXPANSION FEA FOR STATIONARY VISCOUS IMPRESSIBLE NAVIER-STOKES EQUATIONS

Pu Chun-sheng Zhang Shaohuai   

  1. (Well Completion Technology Center)
  • Received:1989-01-21 Revised:1900-01-01 Online:1990-04-20 Published:1990-04-20

摘要:

本文把中子扩散方程的节点展开法运用于流场的计算,对恒定粘性不可压缩流体的Navier-Stokes方程提出了非协调节点展开有限元逼近,论证了有限元解的存在唯一性和收敛性,并进行了数值试验,得到了比较满意的结果.

关键词: 恒定粘性不可压缩流体:流场计算, Navicr-Stokes方程:有限元逼近

Abstract:

In this paper,the nodal expansion method of neutron diffusion equation is applied to the computation of flowing field and the nonconforming nodal expansion finite element approximation is set up for solving stationary viscous impressible Navier-Stokes equations. The existence uniqueness convergence of the finite element solution are proved . The numerical test Stokes problem is carried out and satisfactory results are obtained

Key words: Stationary viscous impressible fluid, Computation of flowing field: Navier-Stokes equati, Finite clement approximation