Discontinuous Legendre Wavelet Galerkin Method for One-Dimensional Advection-Diffusion Equation

• 作者: Xiaoyang Zheng Zhengyuan Wei
• 来源期刊: 应用数学(英文)
• 学科: 数学
• 关键词: ADVECTION-DIFFUSION Equation LEGENDRE WAVELET DISCONTINUOUS GALERKIN METHOD DISCONTINUOUS LEGENDRE WAVELET GALERKIN METHOD
• 年，卷（期）: yysxyw_2015,（9）
• 页码范围: 1581-1591
• 页数: 11页
• 分类号: O1

摘要

This paper presents discontinuous Legendre wavelet Galerkin (DLWG) approach for solving one-dimensional advection-diffusion equation (ADE). Variational formulation of this type equation and corresponding numerical fluxes are devised by utilizing the advantages of both the Legendre wavelet bases and discontinuous Galerkin (DG) method. The distinctive features of the proposed method are its simple applicability for a variety of boundary conditions and able to effectively approximate the solution of PDEs with less storage space and execution. The results of a numerical experiment are provided to verify the efficiency of the designed new technique.