| 激波冲击下air/SF6界面的Richtmyer-Meshkov不稳定性 |
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| 引用本文： | 刘金宏,邹立勇,柏劲松,谭多望,黄文斌,郭文灿.激波冲击下air/SF6界面的Richtmyer-Meshkov不稳定性[J].爆炸与冲击,2011,30(2):135-140. |
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| 作者姓名： | 刘金宏 邹立勇 柏劲松 谭多望 黄文斌 郭文灿 |
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| 作者单位： | 1.中国工程物理研究院流体物理研究所冲击波物理与爆轰物理国防科技重点实验室,四川绵阳621900 |
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| 基金项目： | 国家自然科学基金项目(11072226,10772166); 国防科技工业技术基础科研项目(Z112009B004);国防科技重点实验室基金项目(9140C6710011006)~~ |
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| 摘 要： | 实验研究了低马赫数(1.27)激波作用air/SF6界面的RM不稳定性问题.air/SF6初始正弦界面由厚度为1～2 μm的薄膜相隔得到,用阴影法测试界面演化过程.实验结果表明:由于不稳定性重流体(SF6)向轻流体(air)演化成“尖钉”结构,而轻流体演化为“气泡”结构；由于界面切向速度差的Kelvin-Helm-ho...
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| 关 键 词： | 流体力学 Richtmyer-Meshkov不稳定性 阴影方法 air/SF6界面 激波 激波管 |
Richtmyer-Meshkov instability of shock-accelerated air/SF_6 interfaces |
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| LIU Jin-hong,ZOU Li-yong,BAI Jing-song,TAN Duo-wang,HUANG Wen-bin,GUO Wen-can.Richtmyer-Meshkov instability of shock-accelerated air/SF_6 interfaces[J].Explosion and Shock Waves,2011,30(2):135-140. |
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| Authors: | LIU Jin-hong ZOU Li-yong BAI Jing-song TAN Duo-wang HUANG Wen-bin GUO Wen-can |
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| Institution: | 1.NationalKeyLaboratoryofShock WaveandDetonationPhysics,InstituteofFluidPhysics, |
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| Abstract: | In a shock tube,the air/SF6 interface was accelerated by the incident shock wave with the low Mach number of 1.27.The initial sinusoidal interface was obtained by applying the polymeric membrane with the thickness of 1~2 mm and the interface evolution was monitored by using the time-resolved shadowgraph technique.The Richtmyer-Meshkov(RM) instability of the sinusoidal initial perturbation at the air/SF6 interfaces was characterized by the spikes of the heavy fluid(SF6) falling into the light fluid(air) and ... |
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| Keywords: | fluid mechanics Richtmyer-Meshkov(RM) instability shadowgraph technique air/SF 6 interface shock wave shock tube |
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