Communications on Applied Mathematics and Computation ›› 2021, Vol. 3 ›› Issue (3): 445-480.doi: 10.1007/s42967-020-00082-6

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Adaptive Moving Mesh Central-Upwind Schemes for Hyperbolic System of PDEs: Applications to Compressible Euler Equations and Granular Hydrodynamics

Alexander Kurganov1, Zhuolin Qu2, Olga S. Rozanova3, Tong Wu2   

  1. 1 Department of Mathematics and SUSTech International Center for Mathematics, Southern University of Science and Technology, Shenzhen 518055, Guangdong Province, China;
    2 Department of Mathematics, The University of Texas at San Antonio, San Antonio, TX 78249, USA;
    3 Mathematics and Mechanics Faculty, Moscow State University, Moscow 119991, Russia
  • Received:2019-07-10 Revised:2020-05-26 Online:2021-09-20 Published:2021-09-16
  • Contact: Alexander Kurganov, Zhuolin Qu, Olga S. Rozanova, Tong Wu E-mail:alexander@sustech.edu.cn;zhuolin.qu@utsa.edu;rozanova@mech.math.msu.su;tong.wu@utsa.edu
  • Supported by:
    The work of A. Kurganov was supported in part by the National Natural Science Foundation of China grant 11771201 and by the fund of the Guangdong Provincial Key Laboratory of Computational Science and Material Design (No. 2019B030301001).

Abstract: We introduce adaptive moving mesh central-upwind schemes for one- and two-dimensional hyperbolic systems of conservation and balance laws. The proposed methods consist of three steps. First, the solution is evolved by solving the studied system by the second-order semi-discrete central-upwind scheme on either the one-dimensional nonuniform grid or the two-dimensional structured quadrilateral mesh. When the evolution step is complete, the grid points are redistributed according to the moving mesh differential equation. Finally, the evolved solution is projected onto the new mesh in a conservative manner. The resulting adaptive moving mesh methods are applied to the one- and two-dimensional Euler equations of gas dynamics and granular hydrodynamics systems. Our numerical results demonstrate that in both cases, the adaptive moving mesh central-upwind schemes outperform their uniform mesh counterparts.

Key words: Adaptive moving mesh methods, Finite-volume methods, Central-upwind schemes, Moving mesh differential equations, Euler equations of gas dynamics, Granular hydrodynamics, Singular solutions

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