Volume 31 Issue 10
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WANG Ya-jun, YAN Ying-wen, DANG Long-fei, LI Jing-hua. Numerical investigation on atomization characteristics of liquid jet in crossflow[J]. Journal of Aerospace Power, 2016, 31(10): 2464-2471. doi: 10.13224/j.cnki.jasp.2016.10.020
Citation: WANG Ya-jun, YAN Ying-wen, DANG Long-fei, LI Jing-hua. Numerical investigation on atomization characteristics of liquid jet in crossflow[J]. Journal of Aerospace Power, 2016, 31(10): 2464-2471. doi: 10.13224/j.cnki.jasp.2016.10.020
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Numerical investigation on atomization characteristics of liquid jet in crossflow

doi: 10.13224/j.cnki.jasp.2016.10.020

  • 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: 2015-01-16
  • Publish Date: 2016-10-28
    Abstract
  • In order to investigate the atomization process of a liquid jet injected into a crossflow, the Euler-Euler method in Fluent was used by numerical simulation. The VOF (volume of fluid) model coupled with level-set method was applied to simulate two-phase flow, and the numerical results showed the atomization process of liquid jet in crossflow and the flow field. The effects of flow fields on atomization process of a jet liquid column were studied. Breakup point and liquid jet penetration depth were gained and also compared with the experimental data. The numerical results show that:(1) The coupled level-set and VOF model can be used to simulate the atomization processes of liquid jet injected into crossflow.(2) Because of the counter-rotating vortex, the liquid film and the droplets are transported along the development direction (y), playing a promoting role for secondary atomization. (3) The jet liquid column is always broken at about 8 times the diameter of the injector, and the location of the broken point is determined by the geometrical characteristics of the injector.

     

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