| RICHTMYER-MESHKOV不稳定性的数值模拟 |
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| 引用本文： | 严长林,孙德军,尹协远,童秉纲. RICHTMYER-MESHKOV不稳定性的数值模拟[J]. 计算物理, 2001, 18(1): 27-32 |
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| 作者姓名： | 严长林 孙德军 尹协远 童秉纲 |
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| 作者单位： | 中国科学技术大学力学和机械工程系,;中国科学技术大学力学和机械工程系,;中国科学技术大学力学和机械工程系,;中国科学技术大学力学和机械工程系, |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 采用了自适应的非结构网格和基于有限体积法的二阶Godunov格式,数值模拟了在激波作用下两种不同密度流体的交界面的演化过程.着重讨论了Richtmyer Meshkov不稳定性以及斜压效应在交界面演化过程中的作用,并给出了交界面的扰动增长率.
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| 关 键 词： | 自适应非结构网格 数值模拟 Godunov格式 斜压效应 Richtmyer-Meshkov不稳定性 |
| 文章编号： | 1001-246X(2001)01-0027-06 |
| 收稿时间： | 1999-03-26 |
| 修稿时间： | 1999-03-26 |
NUMERICAL SIMULATIONS OF RICHTMYER-MESHKOV INSTABILITY |
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| YAN Chang-lin,SUN De-jun,YIN Xie-yuan,TONG Bing-gang. NUMERICAL SIMULATIONS OF RICHTMYER-MESHKOV INSTABILITY[J]. Chinese Journal of Computational Physics, 2001, 18(1): 27-32 |
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| Authors: | YAN Chang-lin SUN De-jun YIN Xie-yuan TONG Bing-gang |
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| Affiliation: | Department of Modern Mechanics, University of Science and Technology of China, Hefei 230026, P R China |
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| Abstract: | An approach combining the adaptive unstructured grids and thehigh-order Godunov-type scheme based on the finite-volume method is applied to simulate the evolution of the interface between two layers of fluid with different densities. The research focuses on Richtmyer-Meshkov instability and baroclinic effect in the evolution of the interface. The perturbation growth rates of the interface are also presented. |
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| Keywords: | adaptive unstructured grid numerical simulation Godunov scheme baroclinic effect Richtmyer-Meshkov instability |
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