Breakup and atomization of annular flow jet in crossflow

doi:10.7523/j.issn.2095-6134.2017.02.006

›› 2017, Vol. 34 ›› Issue (2): 160-165.DOI: 10.7523/j.issn.2095-6134.2017.02.006

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Breakup and atomization of annular flow jet in crossflow

SHENG Ganghao¹, ZHANG Haibin¹, ZHAO Zhongchuang², LIU Xinshi³

1 School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China;
2 State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
3 School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Received:2016-04-22 Revised:2016-05-28 Online:2017-03-15

Abstract

Abstract: Experimental investigation was carried out on the atomization of the gas-liquid annular flow jet in crossflow. Results show that the liquid film of the annular flow jet realizes steady atomization in crossflow macroscopically. The dimensionless trajectory correlation of the annular flow jet in crossflow is presented based on the captured atomization images. The transient breakup and atomization of the annular flow jet in crossflow was investigated by using high-speed photography techniques. It is found that the transient breakup and atomization processes of annular flow jet are periodic and discontinuous. The mechanisms of the film breakup and atomization were discussed and the influences of different parameters on them were obtained. Results also indicate that the atomization pattern may vary with conditions. Increase in superficial gas velocity improves the atomization effects.

Key words: annular flow jet, crossflow, breakup and atomization, liquid film

CLC Number:

O359+.1

SHENG Ganghao, ZHANG Haibin, ZHAO Zhongchuang, LIU Xinshi. Breakup and atomization of annular flow jet in crossflow[J]. , 2017, 34(2): 160-165.

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Breakup and atomization of annular flow jet in crossflow

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