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Second-Order Finite Difference/Spectral Element Formulation for Solving the Fractional Advection-Diffusion Equation

     

摘要

The main aim of this paper is to analyze the numerical method based upon the spectral element technique for the numerical solution of the fractional advection-diffusion equa-tion.The time variable has been discretized by a second-order finite difference procedure.The stability and the convergence of the semi-discrete formula have been proven.Then,the spatial variable of the main PDEs is approximated by the spectral element method.The convergence order of the fully discrete scheme is studied.The basis functions of the spectral element method are based upon a class of Legendre polynomials.The numerical experiments confirm the theoretical results.

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  • 来源
    《应用数学与计算数学学报》 |2020年第4期|653-669|共17页
  • 作者

  • 作者单位

    伊朗德黑兰哈菲兹大街424号阿米卡比尔理工大学;

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