Axisymmetric explosions in a liquid microjet induced by co-axial nanosecond laser

被引：0
|
作者：
Chen, Qisheng [1 ]
Zhai, Tianqi [1 ]
Xu, Chenghao [2 ]
Liu, Bingyang [1 ]
Xia, Huihui [3 ]
Deng, Weiwei [1 ]
Zhao, Xinyan [1 ]
Liu, Yanchu [1 ]
机构：
[1] Southern Univ Sci & Technol SUSTech, Dept Mech & Aerosp Engn, Shenzhen Key Lab Soft Mech & Smart Mfg, Shenzhen 518055, Peoples R China
[2] Univ Illinois Urbana & Champaign, Dept Mech Sci & Engn, Urbana, IL 61801 USA
[3] Shenzhen Jinxin Technol Co Ltd, Shenzhen 518108, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW | 2025年 / 188卷
关键词：
Axisymmetric explosions; Liquid microjet; Co-axial nanosecond laser; Laser produced plasma (LPP); Extreme ultraviolet (EUV);
D O I：
10.1016/j.ijmultiphaseflow.2025.105182
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We report an experimental investigation on the explosion of a liquid microjet induced by nanosecond laser. The jet is periodically perturbed by a piezoelectric actuator to generate highly controllable jet pinch-off. The laser is introduced co-axially and propagates through the liquid jet by total internal reflections. The pinch-off region serves as a light funnel to confine and concentrate the laser beam, and the optical power flux may exceed the threshold to induce plasmas and explosions. The explosive phenomenon evolves over four different time scales spanning from 10 ns to 100 mu s. The growth of the explosion gap follows power laws behavior, while the growth of the mist cloud diameter remains linear with respect to time, both of which can be described by models relating plasma volume to deposited energy.
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页数：9
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