CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2005, Vol. 22 ›› Issue (1): 13-18.

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A High Order Accurate TVD Difference Scheme for Hyperbolic Conservation Laws

ZHENG Hua-sheng1,2, ZHAO Ning1   

  1. 1. Department of Aerodynamics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2. Department of Information and Computational Science, Nanchang Institute of Aeronautical Technology, Nanchang 330034, China
  • Received:2003-12-17 Revised:2004-06-27 Online:2005-01-25 Published:2005-01-25

Abstract: A high-order,high resolution,conservative TVD difference scheme is presented for one dimensional hyperbolic conservation equations.The basic idea is as follows.Firstly,the computation domain is divided into many non-overlapping subdomains,and then each subdomain is further subdivided into small cells according to the required accuracy; Secondly,by the flow direction,flux splitting is introduced,and high-order approximation in the subdomain are used to compute the positive/negative numerical fluxes at cell boundaries.Furthermore,TVD corrections are considered to prevent oscillations near discontinuities from the high-order interpolation.Moreover,by means of high-order TVD Runge-Kutta time discretization,a high-order fully discretization method is obtained.The extension to one dimensional systems is also carried out.Finally,numerical experiments on one dimensional Euler equations are given,and numerical results are satisfactory.

Key words: hyperbolic conservation laws, flux splitting, TVD difference scheme, high order accuracy, Euler equations

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