J4 ›› 2010, Vol. 48 ›› Issue (06): 914-920.

• 数学 • 上一篇    下一篇

双曲方程基于BB型对偶剖分的有限体积元法

甘小艇1, 阳莺2   

  1. 1. 楚雄师范学院 数学系| 云南 楚雄 675000;
    2. 桂林电子科技大学 数学与计算科学学院, 广西 桂林 541004
  • 收稿日期:2009-11-17 出版日期:2010-11-26 发布日期:2010-11-26
  • 通讯作者: 阳莺 E-mail:yyang@guet.edu.cn

Finite Volume Element Method for Hyperbolic Equationon BB Dual Subdivisions

GAN Xiaoting1, YANG Ying2   

  1. 1. Department of Mathematics, Chuxiong Normal University, Chuxiong 675000, Yunnan Province, China|
    2. School of Mathematics and Computational Science, Guilin University of Electronic Technology, Guilin 541004, Guangxi Zhuang Autonomous Region, China
  • Received:2009-11-17 Online:2010-11-26 Published:2010-11-26
  • Contact: YANG Ying E-mail:yyang@guet.edu.cn

摘要:

基于三角形剖分和BB型对偶剖分, 构造双曲方程半离散及两种全离散的有限体积元法, 其中双曲方程的两种全离散格式分别用Grank-Nicolson和向后Euler格式逼近, 得到并证明了双曲方程半离散有限体积元格式下最优的H1模和L2模误差估计及两种全离散格式下的误差估计.

关键词: 双曲方程, 有限体积元法, BB型对偶剖分, 误差估计

Abstract:

One semidiscrete and two fully discrete finite volume element methods based on triangulation and BB dual subdivisions were presented for the hyperbolic equations. Here, the two fully discrete schemes were approximated by the GrankNicolson and the Backward Euler schemes respectively. And the optimal H1,L2 norms error estimates for the semidiscrete finite volume
 element scheme were obtained, and the error estimates of the two fully discrete schemes were also obtained.

Key words: hyperbolic equation, finite volume element method, BB dual subdivision, error estimate

中图分类号: 

  • O241.82