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Runge-Kutta Discontinuous Galerkin Method with Front Tracking Method for Solving the Compressible Two-Medium Flow on Unstructured Meshes

  • Haitian Lu (a1), Jun Zhu (a2), Chunwu Wang (a2) and Ning Zhao (a1)
Abstract

In this paper, we extend using the Runge-Kutta discontinuous Galerkin method together with the front tracking method to simulate the compressible two-medium flow on unstructured meshes. A Riemann problem is constructed in the normal direction in the material interfacial region, with the goal of obtaining a compact, robust and efficient procedure to track the explicit sharp interface precisely. Extensive numerical tests including the gas-gas and gas-liquid flows are provided to show the proposed methodologies possess the capability of enhancing the resolutions nearby the discontinuities inside of the single medium flow and the interfacial vicinities of the two-medium flow in many occasions.

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Corresponding author
*Corresponding author. Email: lhtgkzy@126.com (H. T. Lu), zhujun@nuaa.edu.cn (J. Zhu), wangcw@nuaa.edu.cn (C. W. Wang), nzhao2000@hotmail.com (N. Zhao)
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Advances in Applied Mathematics and Mechanics
  • ISSN: 2070-0733
  • EISSN: 2075-1354
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