Volume 30 Issue 10
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Article Navigation >  Journal of Aerospace Power  > 2015  >  30(10): 2401-2409
JIN Ren-han, LIU Yong, ZHU Dong-qing, FENG Zhi-peng, WANG Suo-fang. Experiment on impact of initial diameter on breakup characteristic of single droplet[J]. Journal of Aerospace Power, 2015, 30(10): 2401-2409. doi: 10.13224/j.cnki.jasp.2015.10.014
Citation: JIN Ren-han, LIU Yong, ZHU Dong-qing, FENG Zhi-peng, WANG Suo-fang. Experiment on impact of initial diameter on breakup characteristic of single droplet[J]. Journal of Aerospace Power, 2015, 30(10): 2401-2409. doi: 10.13224/j.cnki.jasp.2015.10.014
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Experiment on impact of initial diameter on breakup characteristic of single droplet

doi: 10.13224/j.cnki.jasp.2015.10.014

  • Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

  • Received Date: 2014-03-30
  • Publish Date: 2015-10-28
    Abstract
  • The high-speed camera was applied to measure droplet deformation and breakup in the continuous and uniform air jet flow. Impacts of the initial diameter on breakup mode, deformation time, deformation and breakup total time and non-dimensional Sauter mean diameter were obtained. Result shows that,critical Weber number increases with the increasing initial diameter. The breakup model is changed into hybrid breakup model constituted by many single breakup models with the increasing initial diameter. Under the same Weber numbers, the deformation time and deformation and breakup total time in the region of larger diameter are both larger than the region of the smaller diameteras the Weber number increased, the deformation time showes the linear variation of first decreasing and then keeping the same, and the deformation and breakup total time showes the linear variation of first decreasing then increasing and decreasing again. The impact of the initial diameter is stronger than the impact of initial relative velocity of gas-liquid on non-dimensional Sauter mean diameter.

     

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