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, |
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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,并给出了交界面的优动增长率。
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关 键 词: | 自适应非结构网格 数值模拟 GODUNOV格式 RICHTM |
文章编号: | 1001-246X(2001)01-0027-06 |
修稿时间: | 1999年3月26日 |
NUMERICAL SIMULATIONS OF RICHTMYER-
MESHKOV INSTABILITY |
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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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