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移动最小二乘法研究进展与述评
  • 期刊名称:计算机辅助工程, 2009, 18(2): 5-11
  • 时间:0
  • 分类:O241.82[理学—计算数学;理学—数学] O241.7[理学—计算数学;理学—数学]
  • 作者机构:[1]Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China, [2]Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China
  • 相关基金:Project supported by the National Natural Science Foundation of China (Grant No. 10871124) and the Innovation Program ol the Shanghai Municipal Education Commission, China (Grant No. 09ZZ99).
  • 相关项目:无单元Galerkin方法的改进及其误差估计理论
中文摘要:

This paper presents a meshless method for the nonlinear generalized regularized long wave(GRLW) equation based on the moving least-squares approximation.The nonlinear discrete scheme of the GRLW equation is obtained and is solved using the iteration method.A theorem on the convergence of the iterative process is presented and proved using theorems of the infinity norm.Compared with numerical methods based on mesh,the meshless method for the GRLW equation only requires the scattered nodes instead of meshing the domain of the problem.Some examples,such as the propagation of single soliton and the interaction of two solitary waves,are given to show the effectiveness of the meshless method.

英文摘要:

This paper presents a meshless method for the nonlinear generalized regularized long wave (GRLW) equation based on the moving least-squares approximation. The nonlinear discrete scheme of the GRLW equation is obtained and is solved using the iteration method. A theorem on the convergence of the iterative process is presented and proved using theorems of the infinity norm. Compared with numerical methods based on mesh, the meshless method for the GRLW equation only requires the.scattered nodes instead of meshing the domain of the problem. Some examples, such as the propagation of single soliton and the interaction of two solitary waves, are given to show the effectiveness of the meshless method.

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