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.
作者
施红辉
王天雨
刘金宏
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)
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
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)。
关键词
激波
液柱
数值计算
实验观察
RM不稳定性
shock wave
liquid cylinder
numerical calculation
experimental observation
RM instability
