Breakup process of a droplet under the impact of a shock wave

Wang Chao; Wu Yu; Shi Honghui; Xiao Yi

doi:10.11883/1001-1455(2016)01-0129-06

Volume 36 Issue 1

Oct. 2018

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Wang Chao, Wu Yu, Shi Honghui, Xiao Yi. Breakup process of a droplet under the impact of a shock wave[J]. Explosion And Shock Waves, 2016, 36(1): 129-134. doi: 10.11883/1001-1455(2016)01-0129-06

Citation:

Wang Chao, Wu Yu, Shi Honghui, Xiao Yi. Breakup process of a droplet under the impact of a shock wave[J]. Explosion And Shock Waves, 2016, 36(1): 129-134. doi: 10.11883/1001-1455(2016)01-0129-06

Wang Chao, Wu Yu, Shi Honghui, Xiao Yi. Breakup process of a droplet under the impact of a shock wave[J]. Explosion And Shock Waves, 2016, 36(1): 129-134. doi: 10.11883/1001-1455(2016)01-0129-06

Citation:

Wang Chao, Wu Yu, Shi Honghui, Xiao Yi. Breakup process of a droplet under the impact of a shock wave[J]. Explosion And Shock Waves, 2016, 36(1): 129-134. doi: 10.11883/1001-1455(2016)01-0129-06

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Breakup process of a droplet under the impact of a shock wave

doi: 10.11883/1001-1455(2016)01-0129-06

Department of Fluids Engineering, College of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang China

Received Date: 2014-06-09
Rev Recd Date: 2014-11-17
Publish Date: 2016-01-25

Abstract

Abstract

In this work we carried out an experimental study along with a numerical simulation of the processes of a droplet deformation and breakup induced by an incident shock wave. The numerical results basically agreed with the experimental results but also identified the conditions under which discrepancies might occur. The results provide a full show of the whole processes of the droplet deformation and breakup: first, the droplet is deformed due to the shock wave compressing and RM instability, then small fogdrops are divorced from the deformed droplet, and in the end the droplet is completely broken up into fogdrops. Due to differences in such flow parameters as droplet diameter, the incident shock wave number, droplet varieties, etc., the development processes of droplets may have markedly different speed although they share similar trends. The results also show that the increase of Weber number accelerates the breakup of the droplet whereas that of Ohnesorge number and viscosity contains it.
- fluid mechanics,
- breakup,
- shock wave,
- droplet,
- deformation,
- RM instability

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References(17)

References

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