Experimental study of bubble dynamics in the neighbourhood of a vertical incomplete boundary

Cui, Jie; Zhou, Tao-Ran; Huang, Xiao; Li, Zichao

doi:10.1016/j.ultsonch.2021.105587

Cited by 18 publications

(4 citation statements)

References 36 publications

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“…Currently, scholars have initiated studies on the interaction between bubbles and boundaries with breaches [6][7][8][9]. For instance, Cui et al [10] studied the mechanism of interaction between a single bubble generated by electric sparks and a perforated wall, identifying the critical distance at which the bubble moves away from the incomplete boundary. Huang et al [11] employed the boundary element method to explore the interaction between bubbles and perforated walls, elucidating the mechanism of surge formation within compartments.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Response of a Warship’s Metal-Jet-Damaged Double-Layer Plates Subjected to the Subsequent Underwater Explosion

Huang,

Mao,

Luo

et al. 2024

JMSE

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This paper examines the response characteristics of a warship’s double-layer plates under a secondary near-field explosion after the ship’s outer plate has been perforated by shaped metal jets. First, the effectiveness of the Coupled Eulerian–Lagrangian (CEL) method was validated, showing numerical simulations to be well aligned with experimental results. Subsequently, the damage inflicted on the outer plate by metal jets was simplified to a prefabricated orifice, further studying the explosive impact response of double-layer plates under different inter-compartmental water levels and charge distances. Our findings indicated the following: (1) shockwave and bubble pulsation loads are the main causes of deformation in the outer plate; (2) the driving of the outer plate and the flooding water between compartments are the main causes of deformation in the inner plate; and (3) deformation in the outer plate will decrease as the water level in the compartment increases, while deformation in the inner plate will increase with the increasing water level. Consequently, under certain specific damage, the ingress of water into a compartment effectively enhances the explosion resistance of the double-layer plates.

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Section: Introductionmentioning

confidence: 99%

Dynamic Response of a Warship’s Metal-Jet-Damaged Double-Layer Plates Subjected to the Subsequent Underwater Explosion

Huang,

Mao,

Luo

et al. 2024

JMSE

Self Cite

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“…Depending on the desired problem, the phenomenon of interest is analyzed from the growth stage of the cavitation bubble to its collapse, jet formation, and impact on the boundary. Free surfaces [ 21 , 22 , 23 ], solid surfaces [ 24 , 25 , 26 , 27 ], perforated plates [ 28 , 29 ], and elastic surfaces [ 30 , 31 ] are among the boundaries of interest for researchers. Various geometries are observed in the research, such as the investigation of the behavior of the jet formed by the cavitation bubble collapse in a rectangular channel [ 32 ], the study of the dynamics of a cavitation bubble in the middle of two parallel horizontal rigid walls with a vertically-closed rigid wall at one end [ 33 ], the investigation of the behavior of a laser-induced cavitation bubble near two rigid walls perpendicular to one another [ 34 ], and the dynamic analysis of a laser-induced cavitation bubble in the upper part of a rigid cylinder [ 35 ].…”

Section: Introductionmentioning

confidence: 99%

Laser-Produced Cavitation Bubble Behavior in Newtonian and Non-Newtonian Liquid Inside a Rigid Cylinder: Numerical Study of Liquid Disc Microjet Impact Using OpenFOAM

2023

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This study employs OpenFOAM to analyze the behavior of a single laser-produced cavitation bubble in a Newtonian/non-Newtonian fluid inside a rigid cylinder. This research aimed to numerically calculate the impact of liquid disc microjet resulting from the growth and collapse of the laser-produced bubble to the cylinder wall to take advantage of the cavitation phenomenon in various industrial and medical applications, such as modeling how to remove calcification lesions in coronary arteries. In addition, by introducing the main study cases in which a single bubble with different initial conditions is produced by a laser in the center/off-center of a cylinder with different orientations relative to the horizon, filled with a stationary or moving Newtonian/Non-Newtonian liquid, the general behavior of the bubble in the stages of growth and collapse and the formation of liquid disk microjet and its impact is examined. The study demonstrates that the presence of initial velocity in water affects the amount of microjet impact proportional to the direction of gravity. Moreover, the relationship between the laser energy and the initial conditions of the bubble and the disk microjet impact on the cylinder wall is expressed.

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“…Some research has investigated the problem of a plate with a through-hole bounding a free surface in relation to breaches of maritime hulls (Cui et al. 2021, 2022; He et al. 2021).…”

Section: Introductionmentioning

confidence: 99%

“…The simplest example of a porous material is a flat plate with a pattern of through-holes. Some research has investigated the problem of a plate with a through-hole bounding a free surface in relation to breaches of maritime hulls (Cui et al 2021(Cui et al , 2022He et al 2021). Similarly, Sun et al (2022b) investigated bubble collapse near a rigid surface with a gas-entrapping hole.…”

Section: Introductionmentioning

confidence: 99%

Bubble collapse near porous plates

2023

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The collapse of a gas or vapour bubble near a non-porous boundary is directed at the boundary due to the asymmetry induced by the nearby boundary. High surface pressure and shear stress from this collapse can damage, or clean, the surface. A porous boundary, such as a filter, would act similarly to a non-porous boundary but with reduced asymmetry and thus reduced effect. Prior research has measured the cleaning effect of bubbles on filters using ultrasonic cleaning, but it is not known how the bubble dynamics are fundamentally affected by the porosity of the surface. We address this question experimentally by investigating how the standoff distance, porosity, pore size and pore shape affect two collapse properties: bubble displacement and bubble rebound size. We show that these properties depend primarily on the standoff distance and porosity of the boundary and extend a previously developed numerical model that approximates this behaviour. Using the numerical model in combination with experimental data, we show that bubble displacement and bubble rebound size each collapse onto respective single curves.

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Experimental study of bubble dynamics in the neighbourhood of a vertical incomplete boundary

Cited by 18 publications

References 36 publications

Dynamic Response of a Warship’s Metal-Jet-Damaged Double-Layer Plates Subjected to the Subsequent Underwater Explosion

Dynamic Response of a Warship’s Metal-Jet-Damaged Double-Layer Plates Subjected to the Subsequent Underwater Explosion

Laser-Produced Cavitation Bubble Behavior in Newtonian and Non-Newtonian Liquid Inside a Rigid Cylinder: Numerical Study of Liquid Disc Microjet Impact Using OpenFOAM

Bubble collapse near porous plates

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