中国物理B ›› 2020, Vol. 29 ›› Issue (8): 86201-086201.doi: 10.1088/1674-1056/ab928a

• SPECIAL TOPIC—Ultracold atom and its application in precision measurement • 上一篇    下一篇

Experimental investigation on the properties of liquid film breakup induced by shock waves

Xianzhao Song(宋先钊), Bin Li(李斌), Lifeng Xie(解立峰)   

  1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • 收稿日期:2020-03-05 修回日期:2020-05-11 出版日期:2020-08-05 发布日期:2020-08-05
  • 通讯作者: Bin Li, Lifeng Xie E-mail:libin@njust.edu.cn;xielifeng319@sina.com
  • 基金资助:
    Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 11802136) and the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 11802136).

Experimental investigation on the properties of liquid film breakup induced by shock waves

Xianzhao Song(宋先钊), Bin Li(李斌), Lifeng Xie(解立峰)   

  1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • Received:2020-03-05 Revised:2020-05-11 Online:2020-08-05 Published:2020-08-05
  • Contact: Bin Li, Lifeng Xie E-mail:libin@njust.edu.cn;xielifeng319@sina.com
  • Supported by:
    Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 11802136) and the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 11802136).

摘要: We experimentally observed properties of liquid film breakup for shock-wave-initiated disturbances in air at normal temperature and pressure. The tested liquids include water and various glycerol mixtures. High speed camera and multiple-spark high speed camera were utilized to record the process of liquid film breakup. A phase Doppler particle analyzer was also used to record droplet size and velocity. The experimental results show that liquid viscosity plays a vital role in the deformation, breakup and atomization of liquid films. After the interaction of shock waves, the droplet size of various glycerol mixtures is significantly smaller than either water or glycerol. Richtmyer-Meshkov instability is an important factor in the breakup and atomization of liquid films induced by shock waves. Furthermore, a dispersal model is established to study breakup mechanisms of liquid films. The correlation between droplet size and velocity is revealed quantitatively. The research results may provide improved understanding of breakup mechanisms of liquid films, and have important implications for many fields, especially for heterogeneous detonations of gas/liquid mixtures.

关键词: shock wave, multiphase flow, Richtmyer-Meshkov instability

Abstract: We experimentally observed properties of liquid film breakup for shock-wave-initiated disturbances in air at normal temperature and pressure. The tested liquids include water and various glycerol mixtures. High speed camera and multiple-spark high speed camera were utilized to record the process of liquid film breakup. A phase Doppler particle analyzer was also used to record droplet size and velocity. The experimental results show that liquid viscosity plays a vital role in the deformation, breakup and atomization of liquid films. After the interaction of shock waves, the droplet size of various glycerol mixtures is significantly smaller than either water or glycerol. Richtmyer-Meshkov instability is an important factor in the breakup and atomization of liquid films induced by shock waves. Furthermore, a dispersal model is established to study breakup mechanisms of liquid films. The correlation between droplet size and velocity is revealed quantitatively. The research results may provide improved understanding of breakup mechanisms of liquid films, and have important implications for many fields, especially for heterogeneous detonations of gas/liquid mixtures.

Key words: shock wave, multiphase flow, Richtmyer-Meshkov instability

中图分类号:  (High-pressure effects in solids and liquids)

  • 62.50.-p
47.55.Ca (Gas/liquid flows) 52.57.Fg (Implosion symmetry and hydrodynamic instability (Rayleigh-Taylor, Richtmyer-Meshkov, imprint, etc.))