HAM-Based Adaptive Multiscale Meshless Method for Burgers Equation

Autor: Shu-Li Mei
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Journal of Applied Mathematics, Vol 2013 (2013)
Druh dokumentu: article
ISSN: 1110-757X
1687-0042
DOI: 10.1155/2013/248246
Popis: Based on the multilevel interpolation theory, we constructed a meshless adaptive multiscale interpolation operator (MAMIO) with the radial basis function. Using this operator, any nonlinear partial differential equations such as Burgers equation can be discretized adaptively in physical spaces as a nonlinear matrix ordinary differential equation. In order to obtain the analytical solution of the system of ODEs, the homotopy analysis method (HAM) proposed by Shijun Liao was developed to solve the system of ODEs by combining the precise integration method (PIM) which can be employed to get the analytical solution of linear system of ODEs. The numerical experiences show that HAM is not sensitive to the time step, and so the arithmetic error is mainly derived from the discrete in physical space.
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