Response of ∼100 micron water jets to intense nanosecond laser blasts

Lihao Gao; Yanchu Liu; Hui Tang; Weiwei Deng

doi:10.1103/PhysRevFluids.7.034001

Response of ∼100 micron water jets to intense nanosecond laser blasts

Lihao Gao, Yanchu Liu, Hui Tang, Weiwei Deng

Research output: Journal article publication › Journal article › Academic research › peer-review

2 Citations (Scopus)

Abstract

We performed an experimental study on water microjets of 100 microns in radius ablated in air by both green (532 nm) and near infrared (1064 nm) nanosecond laser pulses with up to 1100 mJ per pulse. We show this affordable and accessible experimental apparatus captures the essence of the water jet response after being ablated by an intense laser pulse. The results reveal that ∼3.5% of laser pulse energy enters the water jet and half reaches the nozzle orifice as far as 50 times the jet diameter away from the ablation point through internal reflections. The energy density absorbed by the nozzle orifice exceeds the damage threshold of stainless steel, causing microexplosions and formation of a liquid sheet near the nozzle orifice.

Original language	English
Article number	034001
Journal	Physical Review Fluids
Volume	7
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevFluids.7.034001
Publication status	Published - Mar 2022

ASJC Scopus subject areas

Computational Mechanics
Modelling and Simulation
Fluid Flow and Transfer Processes

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10.1103/PhysRevFluids.7.034001

http://hdl.handle.net/10397/94007

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abstract = "We performed an experimental study on water microjets of 100 microns in radius ablated in air by both green (532 nm) and near infrared (1064 nm) nanosecond laser pulses with up to 1100 mJ per pulse. We show this affordable and accessible experimental apparatus captures the essence of the water jet response after being ablated by an intense laser pulse. The results reveal that ∼3.5% of laser pulse energy enters the water jet and half reaches the nozzle orifice as far as 50 times the jet diameter away from the ablation point through internal reflections. The energy density absorbed by the nozzle orifice exceeds the damage threshold of stainless steel, causing microexplosions and formation of a liquid sheet near the nozzle orifice.",

author = "Lihao Gao and Yanchu Liu and Hui Tang and Weiwei Deng",

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AU - Gao, Lihao

AU - Liu, Yanchu

AU - Tang, Hui

AU - Deng, Weiwei

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N2 - We performed an experimental study on water microjets of 100 microns in radius ablated in air by both green (532 nm) and near infrared (1064 nm) nanosecond laser pulses with up to 1100 mJ per pulse. We show this affordable and accessible experimental apparatus captures the essence of the water jet response after being ablated by an intense laser pulse. The results reveal that ∼3.5% of laser pulse energy enters the water jet and half reaches the nozzle orifice as far as 50 times the jet diameter away from the ablation point through internal reflections. The energy density absorbed by the nozzle orifice exceeds the damage threshold of stainless steel, causing microexplosions and formation of a liquid sheet near the nozzle orifice.

AB - We performed an experimental study on water microjets of 100 microns in radius ablated in air by both green (532 nm) and near infrared (1064 nm) nanosecond laser pulses with up to 1100 mJ per pulse. We show this affordable and accessible experimental apparatus captures the essence of the water jet response after being ablated by an intense laser pulse. The results reveal that ∼3.5% of laser pulse energy enters the water jet and half reaches the nozzle orifice as far as 50 times the jet diameter away from the ablation point through internal reflections. The energy density absorbed by the nozzle orifice exceeds the damage threshold of stainless steel, causing microexplosions and formation of a liquid sheet near the nozzle orifice.

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Response of ∼100 micron water jets to intense nanosecond laser blasts

Abstract

ASJC Scopus subject areas

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