An experimental investigation of the dynamic response of a liquid metal jet subjected to nanosecond laser ablation

Zhai，Tianqi1; Xu，Chenghao1; Chen，Qisheng1; Gao，Lihao1; Zhang，Zhihan1; Xu，Cheng1; Zhao，Yibo1; Deng，Weiwei1,2; Liu，Yanchu1

2024

10.1063/5.0180144

Physics of Fluids   影响因子和分区

1070-6631

1089-7666

The dynamic response of a micrometer-sized gallium-indium (Ga-In) jet in nitrogen subjected to intense Neodymium-doped Yttrium Aluminum Garnet (Nd: YAG) laser pulses with energy ranging from 0.35 to 5.0 mJ per pulse is investigated experimentally. The rapid deformation of the jet was visualized using timed-delayed stroboscopic shadowgraphy. The laser pulse disrupts the jet to form a gap, and the length of the gap grows according to a logarithm relationship with respect to the dimensionless time normalized a characteristic timescale τ, which is determined by the pulse energy E. The ablation impulse bends and flattens the jet into a thin curved film that resembles a wind-blown sail. The area of the sail increases with tE, where t is time. The sail eventually breaks up into fine mist. Additionally, we found that the laser-blast-induced initial bending velocity of the jet could be predicted using the semi-empirical laser-ablated propulsion model for an In-Sn droplet of tens of micrometers.

SCI ; EI

英语

第一 ; 通讯

GauangDong Basic and Applied Basic Research Foundation[2022A1515110355] ; GuangDong Basic and Applied Basic Research Foundation["11932009","12041601","12327803"] ; National Natural Science Foundation of China[2020-148]

Mechanics ; Physics

Mechanics ; Physics, Fluids & Plasmas

WOS:001206927400015

AIP Publishing

PHYSICS

2-s2.0-85183325144

Scopus

1.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology (SUSTech),Shenzhen,518055,China
2.SUSTech Center for Complex Flows and Soft Matter Research,Shenzhen,518055,China

Zhai，Tianqi,Xu，Chenghao,Chen，Qisheng,et al. An experimental investigation of the dynamic response of a liquid metal jet subjected to nanosecond laser ablation[J]. Physics of Fluids,2024,36(1).

Zhai，Tianqi.,Xu，Chenghao.,Chen，Qisheng.,Gao，Lihao.,Zhang，Zhihan.,...&Liu，Yanchu.(2024).An experimental investigation of the dynamic response of a liquid metal jet subjected to nanosecond laser ablation.Physics of Fluids,36(1).

Zhai，Tianqi,et al."An experimental investigation of the dynamic response of a liquid metal jet subjected to nanosecond laser ablation".Physics of Fluids 36.1(2024).