A meshless method of lines for the numerical solution of KdV equation using radial basis functions

作者：Shen Quan^*

来源：Engineering Analysis with Boundary Elements, 2009, 33(10): 1171-1180.

DOI：10.1016/j.enganabound.2009.04.008

• Method of lines (MOL)
• Korteweg-de Vries (KdV)
• Solitons
• Meshless
• Radial basis RBF)
• Multiquadric (MQ)
• Inverse multiquadric(IMQ)
• Gaussian (GA)

In this paper, a meshless method of lines (MOL) is presented for the numerical solution of the Korteweg-de Vries (KdV) equation. This novel method has an advantage over the traditional method of lines which approximates the spatial derivatives using finite difference method (FDM) or finite element method (FEM), because it does not need the mesh in the domain, and it approximates the solution using the radial basis functions (RBFs) on a set of node scattered in problem domain. A comparison among some RBFs is made in numerical examples. Numerical examples demonstrate the accuracy and easy implementation of this novel method and it is an efficient method for the nonlinear time-dependent partial differential equations (PDEs).

• 出版日期2009-10
• 单位北京大学