主管部门: 中国航天科技集团有限公司
主办单位: 中国航天空气动力技术研究院
中国宇航学会
中国宇航出版有限责任公司
刘铁钢, 许亮. 模拟多介质界面问题的虚拟流体方法综述[J]. 气体物理, 2019, 4(2): 1-16. DOI: 10.19527/j.cnki.2096-1642.0746
引用本文: 刘铁钢, 许亮. 模拟多介质界面问题的虚拟流体方法综述[J]. 气体物理, 2019, 4(2): 1-16. DOI: 10.19527/j.cnki.2096-1642.0746
LIU Tie-gang, XU Liang. A Review of Ghost Fluid Methods for Multi-Medium Interface Simulation[J]. PHYSICS OF GASES, 2019, 4(2): 1-16. DOI: 10.19527/j.cnki.2096-1642.0746
Citation: LIU Tie-gang, XU Liang. A Review of Ghost Fluid Methods for Multi-Medium Interface Simulation[J]. PHYSICS OF GASES, 2019, 4(2): 1-16. DOI: 10.19527/j.cnki.2096-1642.0746

模拟多介质界面问题的虚拟流体方法综述

A Review of Ghost Fluid Methods for Multi-Medium Interface Simulation

  • 摘要: 虚拟流体方法为模拟具有清晰物质界面的多介质流动问题提供了一种简便途径.尤其基于多介质Riemann问题解的修正虚拟流体方法及其变体,能够真实考虑到界面附近非线性波的相互作用和物质性质的影响,可以有效解决各种界面强间断等挑战性难题,具有巨大的工程应用潜力.文章重点回顾了虚拟流体方法的发展历史,总结和对比了各种代表性版本在模拟可压缩多介质流时的界面条件定义方式和多维推广方式,并介绍了该方法的设计原则和精度分析方面的研究进展.文章还回顾了该方法在其他更广泛和更具挑战性典型科学问题中的最新应用进展,并对方法的优势和特点进行了总结.

     

    Abstract: The ghost fluid method (GFM) provides a simple way to simulate multi-medium flows with immiscible interfaces. Especially, the modified ghost fluid method (MGFM) and its variants, based on multi-medium Riemann problem solvers, are capable of faithfully taking into account the effects of nonlinear wave interaction and material property at the interface. These treatments have been shown to be efficient when applied to solve various challenging problems involving large discontinuities at the material interface. The MGFM and its variants, therefore, have great potential in engineering applications. In this paper, the development of such method was reviewed. The methodologies of representative GFM-based algorithms for definition of interface conditions and extension to multi-dimensions were compared to each other. The research progresses in design principle and accuracy analysis were also briefly described. In addition, some other typical applications in more challenging scientific problems were presented. Such advantages and features built in the GFM-based algorithms were also summarized.

     

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