| MGFM在强激波与物质界面作用中的应用 |
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| 引用本文： | 王革,张斌.MGFM在强激波与物质界面作用中的应用[J].计算力学学报,2009,26(3):442-445. |
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| 作者姓名： | 王革 张斌 |
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| 作者单位： | 哈尔滨工程大学,航天工程系,哈尔滨,150001 |
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| 摘 要： | 原始的虚拟流方法(GFM)在计算强激波和物质界面作用时无法得到正确的计算结果,而改进虚拟流方法(MGFM)处理这类问题的能力大大提高.本文用Level set捕获物质界面,用MGFM方法定义虚拟流节点参数,Euler方程采用HLLC格式离散求解,完成了强激波和物质界面作用的一维和二维数值实验.结果表明改进虚拟流方法在强激波与物质界面作用中的应用是成功的.
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| 关 键 词： | Euler方程 Level Set方法 MGFM方法 |
| 收稿时间： | 2008/10/10 0:00:00 |
Modified ghost method for strong shock impacting on material interface |
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| WANG Ge and ZHANG Bin.Modified ghost method for strong shock impacting on material interface[J].Chinese Journal of Computational Mechanics,2009,26(3):442-445. |
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| Authors: | WANG Ge and ZHANG Bin |
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| Institution: | Department of Aerospace Engineering, Harbin Engineering University, Harbin 150001,China;Department of Aerospace Engineering, Harbin Engineering University, Harbin 150001,China |
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| Abstract: | It is found that the original ghost fluid method does not work well when applied to strong shock impacting on material interface. While modified ghost method can handle this kind of problems well. In this work, the position of material interfaces were captured by Level set, the parameter of ghost points were defined by MGFM, and HLLC was applied to solve Euler equations. Numerical results of 1-d and 2-d cases show that MGFM was applied successfully in strong shock impacting on material interface. |
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| Keywords: | HLLC |
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