数学物理学报(英文版) ›› 2009, Vol. 29 ›› Issue (6): 1629-1646.doi: 10.1016/S0252-9602(10)60006-9

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A GHOST FLUID BASED FRONT TRACKING METHOD FOR MULTIMEDIUM COMPRESSIBLE FLOWS

王东红, 赵宁, 胡偶, 刘剑明   

  1. 1.College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2.College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • 收稿日期:2010-05-15 出版日期:2009-11-20 发布日期:2009-11-20
  • 基金资助:

    This work was supported by National Science Foundation of China (10576015).

A GHOST FLUID BASED FRONT TRACKING METHOD FOR MULTIMEDIUM COMPRESSIBLE FLOWS

 WANG Dong-Hong, ZHAO Ning, HU Oou, LIU Jian-Ming   

  1. 1.College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2.College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2010-05-15 Online:2009-11-20 Published:2009-11-20
  • Supported by:

    This work was supported by National Science Foundation of China (10576015).

摘要:

Recent years the modify ghost fluid method (MGFM) and the real ghost fluid method (RGFM) based on Riemann problem have been developed for multimedium compressible flows. According to authors, these methods have only been used with the level set technique to track the interface. In this paper, we combine the MGFM and the RGFM respectively with front tracking method, for which the fluid interfaces are explicitly tracked by connected points. The method is tested with some one-dimensional problems, and its applicability is also studied.
Furthermore, in order to capture the interface more accurately, especially for strong shock impacting on interface, a shock monitor is proposed to determine the initial states of the Riemann problem. The present method is applied to various one-dimensional problems involving strong shock-interface interaction. An extension of the present method to two dimension is also introduced and preliminary results are given.

关键词: front tracking method, ghost fluid method, multimedium compressible flow, Riemann problem

Abstract:

Recent years the modify ghost fluid method (MGFM) and the real ghost fluid method (RGFM) based on Riemann problem have been developed for multimedium compressible flows. According to authors, these methods have only been used with the level set technique to track the interface. In this paper, we combine the MGFM and the RGFM respectively with front tracking method, for which the fluid interfaces are explicitly tracked by connected points. The method is tested with some one-dimensional problems, and its applicability is also studied.
Furthermore, in order to capture the interface more accurately, especially for strong shock impacting on interface, a shock monitor is proposed to determine the initial states of the Riemann problem. The present method is applied to various one-dimensional problems involving strong shock-interface interaction. An extension of the present method to two dimension is also introduced and preliminary results are given.

Key words: front tracking method, ghost fluid method, multimedium compressible flow, Riemann problem

中图分类号: 

  • 65M60