多根液柱在激波作用下的变形破碎过程研究  

Research on Deformation and Breakup of Multiple Liquid Cylinders after the Impact by Shock Waves

作　　者：施红辉 王天雨 刘金宏[2] 张珂 董若凌 张一博 SHI Hong-Hui;WANG Tian-Yu;LIU Jin-Hong;ZHANG Ke;DONG Ruo-Ling;ZHANG Yi-Bo(College of Mechanical Engineering and Automation,Zhejiang Sci-Tech University,Hangzhou 310018,China;Institute of Fluid Physics,Chinese Academy of Engineering Physics,Mianyang 621900,China)

机构地区：[1]浙江理工大学机械与自动控制学院流体工程系,杭州310018 [2]中国工程物理研究院流体物理研究所,绵阳621900

出　　处：《工程热物理学报》2020年第8期1931-1939,共9页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.11772309);浙江省基础公益研究计划项目(No.LGG19A020002)。

摘　　要：本文对直径为2 mm的单根液柱和三根液柱在马赫数为1.2的激波作用下的变形破碎过程进行了数值计算和实验观察。数值计算包括了二维水平截面及三维流场,利用多相流VOF模型和标准k-ε湍流模型,计算得到了气/液界面的Richtmyer-Meshkov(RM)不稳定性失稳过程及液柱周围流场的物理特性,分析了尖钉高度和气泡深度的发展规律,数值计算结果与实验结果有良好的一致性。The processes of deformation and breakup of single and three parallel liquid cylinders with a diameter of 2 mm,which were caused by the impact of a shock wave of Mach number 1.2,were studied both numerically and experimentally.The two dimensional and three dimensional flow field were simulated using VOF multiphase flow model and standard k-εturbulence model.The evolution of Richtmyer-Meshkov(RM)instability on a gas/liquid interface,physical parameters surrounding the liquid cylinder and development of spike height and bubble depth were obtained.The numerical results are in agreement with the experimental results.

关 键 词：激波 液柱 数值计算 实验观察 RM不稳定性 

分 类 号：O3591.1[理学—流体力学] O354.5[理学—力学]