Experimental research on breakup of 2D power law liquid film

Lixing Xu; Zhenyan Xia; Mengzheng Zhang; Qing Du; Fuqiang Bai

doi:10.1016/j.cjche.2015.03.011

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Experimental research on breakup of 2D power law liquid film

流体力学与传递现象 | Updated：2026-01-06

- Experimental research on breakup of 2D power law liquid film
- Chinese Journal of Chemical Engineering Vol. 23, Issue 9, Pages: 1429-1439(2015)
- Affiliations：
  
  1. Department of Mechanics, Tianjin University,Tianjin,China,300072
  2. Xi'an Aerospace Propulsion Institute,Xi'an,China,710100
  3. State Key Laboratory of Engines, Tianjin University,Tianjin,China,300072
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2015.03.011
  CLC：
- Published：2015
- Accepted：
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Lixing Xu, Zhenyan Xia, Mengzheng Zhang, Qing Du, Fuqiang Bai. Experimental research on breakup of 2D power law liquid film[J]. , 2015, 23(9): 1429-1439.
DOI：

Lixing Xu, Zhenyan Xia, Mengzheng Zhang, Qing Du, Fuqiang Bai. Experimental research on breakup of 2D power law liquid film[J]. , 2015, 23(9): 1429-1439. DOI： 10.1016/j.cjche.2015.03.011.

摘要

Abstract

On account of limited knowledge of the breakup of power law liquid film

the process of its disintegration and atomization was studied by using a planar liquid film. A linear stability analysis was adopted to predict the breakup characteristics of the power law film. The predicting formulas of stripping breakup length and diameter of ligament were put forward presently. Through high-speed photography and laser light sheet illumination

different breakup characteristics of flat power law film under different conditions were derived. The characteristic dimension of breakup regimes were defined and extracted. The effects of several parameters (injection pressure

ambient pressure

nozzle structure and fluid property) on the stripping breakup length and spray angle were investigated. The results revealed that increasing both the velocity of liquid film and the ambient pressure facilitated the breakup of film

reduced the stripping breakup length and enlarged the spray angle in different extents. The comparison between theoretical and experimental results was conducted to validate the feasibility of the linear stability theory.

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