Experimental investigation of the effect of ambient pressure on laser-induced bubble dynamics

Li, Beibei; Zhang, Hongchao; Lü, Jian; Ni, Xiaowu

doi:10.1016/j.optlastec.2011.05.016

Cited by 37 publications

(14 citation statements)

References 20 publications

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“…From around 70 μs, the boundary between the bubble and the liquid became unstable, and the bubble could not remain hemispherical or deformed in a random manner. Oscillation in the bubble size, i.e., the repeating of the formation and collapse of the bubble, which were often observed in previous studies [9][10][11][12] were not observed in the present work. This behavior agrees with the results that no shock wave signal was observed after the second one.…”

Section: Discussionsupporting

confidence: 60%

“…It has been known that the Rayleigh model [14] describes a collapse of the cavitation bubble in an infinite and incompressible fluid with the assumption that the pressure of the liquid as well as the pressure inside the bubble is constant during the bubble collapse [10,11,13]. In the Rayleigh model the radius of the bubble at delay time t after the pulse irradiation, R(t), is described by [10,11]…”

Section: Discussionmentioning

confidence: 99%

“…The energy E B of a cavitation bubble is proportional to the cube of its maximum radius [10,11,15,16] For further examination for the verification of this idea, we introduce the Rayleigh-Plesset equation to describe the bubble dynamics. It is well known that the temporal variation of the spherical bubble radius produced by a single pulse irradiation is in good agreement with the Rayleigh-Plesset equation [12,18,19].…”

Section: Discussionmentioning

confidence: 99%

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Dynamics of cavitation bubbles generated by multi-pulse laser irradiation of a solid target in water

et al. 2012

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The effect of the second and later pulses on the expansion dynamics of the cavitation bubble produced by multi-pulse microchip laser irradiation of a Cu target in water has been investigated. We clarified the bubble dynamics by taking shadowgraph images and measuring the bubble radius as a function of time. Shock waves were also measured to investigate the explosive expansion of the bubble. As a result, the second and later pulses did not cause an explosive expansion, and the ablation of the target by these pulses was rather mild, although they had a certain contribution to the expansion of the bubble. The energies given to the bubble expansion from the first pulse and also from the second pulse were estimated by comparing the experimental results with the calculation based on the Rayleigh model. The effect of the second and later pulses upon the bubble dynamics is discussed from the view point of the application to underwater laser-induced breakdown spectroscopy.

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Section: Discussionsupporting

confidence: 60%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Dynamics of cavitation bubbles generated by multi-pulse laser irradiation of a solid target in water

et al. 2012

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“…For denser gases, the internal flow through the bubble neck late in the collapse process significantly changed the pinch‐off dynamics. Li et al investigated the effect of pressure on the dynamics of laser‐induced bubbles and found that both the maximum bubble size and bubble collapse time decreased nonlinearly with increasing pressure.…”

Section: Introductionmentioning

confidence: 99%

A unified theoretical model for breakup of bubbles and droplets in turbulent flows

et al. 2014

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Pressure has a significant effect on bubble breakup, and bubbles and droplets have very different breakup behaviors. This work aimed to propose a unified breakup model for both bubbles and droplets including the effect of pressure. A mechanism analysis was made on the internal flow through the bubble/droplet neck in the breakup process, and a mathematical model was obtained based on the Young–Laplace and Bernoulli equations. The internal flow behavior strongly depended on the pressure or gas density, and based on this mechanism, a unified breakup model was proposed for both bubbles and droplets. For the first time, this unified breakup model gave good predictions of both the effect of pressure or gas density on the bubble breakup rate and the different daughter size distributions of bubbles and droplets. The effect of the mother bubble/droplet diameter, turbulent energy dissipation rate and surface tension on the breakup rate, and daughter bubble/droplet size distribution was discussed. This bubble breakup model can be further used in a population balance model (PBM) to study the effect of pressure on the bubble size distribution and in a computational fluid dynamics‐population balance model (CFD‐PBM) coupled model to study the hydrodynamic behaviors of a bubble column at elevated pressures. © 2014 American Institute of Chemical Engineers AIChE J, 61: 1391–1403, 2015

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“…It could retard the collapse of cavitation bubble by slowing the rate of bubble contraction [8,9]. On the contrary, bubble collapse accelerated as the increase of surface tension and pressure [10][11][12]. .…”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamics Simulation on Cavitation Bubble Collapse

Qiu

Chen

Zhou

2018

mech

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Experimental investigation of the effect of ambient pressure on laser-induced bubble dynamics

Cited by 37 publications

References 20 publications

Dynamics of cavitation bubbles generated by multi-pulse laser irradiation of a solid target in water

Dynamics of cavitation bubbles generated by multi-pulse laser irradiation of a solid target in water

A unified theoretical model for breakup of bubbles and droplets in turbulent flows

Molecular Dynamics Simulation on Cavitation Bubble Collapse

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