Characteristics of breakup of liquid sheet of axisymmetric opposed jets

HUANG Guofeng; LI Weifeng; TU Gongyi; WANG Fuchen

doi:10.3969/j.issn.0438-1157.2014.10.007

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Characteristics of breakup of liquid sheet of axisymmetric opposed jets

更新时间：2025-12-10

- Characteristics of breakup of liquid sheet of axisymmetric opposed jets
- CIESC Journal Issue 10, Pages: 3789-3797(2014)
- 作者机构：
  
  华东理工大学煤气化及能源化工教育部重点实验室, 上海煤气化工程技术研究中心,上海,200237
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.10.007
  CLC： Q021.1
- Online First：05 October 2014，
  
  Published：05 October 2014
- 稿件说明：
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HUANG Guofeng, LI Weifeng, TU Gongyi, et al. Characteristics of breakup of liquid sheet of axisymmetric opposed jets[J]. CIESC Journal, 2014, (10): 3789-3797.
DOI：

HUANG Guofeng, LI Weifeng, TU Gongyi, et al. Characteristics of breakup of liquid sheet of axisymmetric opposed jets[J]. CIESC Journal, 2014, (10): 3789-3797. DOI： 10.3969/j.issn.0438-1157.2014.10.007.

摘要

采用高速摄像仪对两液柱撞击产生液膜的破裂过程进行了实验研究。分析了撞击液膜的破裂过程及表面波产生和传播过程，考察了射流直径、喷嘴间距和射流Weber数（We）对撞击液膜破裂的影响；定量分析了液膜表面波频率的变化及液膜破裂后的粒径分布情况。研究结果表明，液膜表面波传播频率随We的增大而增大，并沿液膜径向方向逐渐减小；随着射流We的增加，液膜边缘的液滴脱落频率增加；当We>1000时，液膜表面产生大量液滴团，且液滴团对液膜破裂具有促进作用；液柱撞击液膜发生破裂后90%以上的量纲1液滴粒径分布在0～1之间。

Abstract

The breakup process of liquid sheet formed by two axisymmetric opposed jets was experimentally studied with a high-speed camera. The breakup process

the generation and propagation process of surface wave of liquid sheet were analyzed. The influences of jet diameter

nozzle separation and jet Weber number on the breakup of liquid sheet were investigated. The frequency variation of surface wave and the size distribution of sheet disintegration were quantitatively analyzed. The propagation frequency of surface wave increased with increasing We

but decreased along the radial direction. The droplet shedding frequency of sheet edge increased with increasing We. At We>1000

a large number of droplet dots appeared at surface of liquid sheet

which promoted the breakup of liquid sheet. The non-dimensional drop size disintegrated from liquid sheet was mainly in the range of 0-1.

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