Modeling of cavitation peening: Jet, bubble growth and collapse, micro-jet and residual stresses

Sonde, Emmanuel; Chaise, Thibaut; Boisson, Nicolas; Nélias, Daniel

doi:10.1016/j.jmatprotec.2018.07.023

Cited by 32 publications

(8 citation statements)

References 38 publications

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“…For the process of cavitation peening, the primary shock wave generated by a perfect spherical collapse had a higher pressure level than an aspherical collapse. This conclusion has been obtained both experimentally by Soyama [ 75 ] and computationally analysis by Sonde et al [ 38 ].…”

Section: Resultssupporting

confidence: 64%

“…To further study the process of cavitation peening, it is necessary to predict the mechanical loading during this process. Models for the prediction of the cavitation peening process have recently been developed and partly based on the single bubble dynamics [ 38 ]. This work combined the pressure wave generated by a single bubble with the volume fraction distribution in the cavitation stream obtained through Computational Fluid Dynamics (CFD) modeling in order to predict the pressure generated by the cavitating jet.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Analytical Study of under Water Pressure Wave Induced by the Implosion of a Bubble Generated by Focused Laser

Han

Mauger

Chaise

et al. 2021

Sensors

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In various domains of material processing, such as surface cleaning and surface treatment, cavitation phenomenon may become an alternative to traditional methods if this phenomenon is well understood. Due to experimental and mathematical difficulties in theoretical models, it is still a challenge to accurately measure the physical mechanism of the fluid/structure interactions. In this study, we verified the feasibility of using polyvinylidene fluoride (PVDF) sensors to quantitatively measure the under-water pressure wave generated by the collapse of a single cavitation bubble. The electrical signal obtained by PVDF can be converted into pressure information only by using the sensor material parameters provided by the supplier. During the conversion process, only the capacitance of the acquisition chain needs to be additionally measured. At the same time, a high-speed video recording system was used to visualize the evolution of the cavitation bubble. The Gilmore analytical model and an associated wave propagation model were used to simulate the pressure peak of the first collapse of the cavitation bubble. This theoretical pressure was compared with the experimental results. The result showed that, for bubbles with a normalized standoff distance γ larger than 5, the PVDF sensor had the ability to quantitatively measure the pressure wave generated by a single cavitation bubble.

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Section: Resultssupporting

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Experimental and Analytical Study of under Water Pressure Wave Induced by the Implosion of a Bubble Generated by Focused Laser

Han

Mauger

Chaise

et al. 2021

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

“…It is different from the target vortex, which is closely related to a turbulent eddy. Although the vortex structure of cavitating flow is important in cavitation peening [4] , [5] , [6] , [67] , there is significant misunderstanding of the vortex flow around the submerged water jet [68] , [69] , [70] , and a spherical bubble in shear flow was assumed in the simulation [71] , [72] .…”

Section: Introductionmentioning

confidence: 99%

Luminescence intensity of vortex cavitation in a Venturi tube changing with cavitation number

Soyama

2021

Ultrasonics Sonochemistry

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“…The preparation work before the experiment included the calibration of the instruments and flowmeters and the measurement of the wave velocity and resistance coefficient along the pipeline [11,12]. The experimental scheme was developed based on the pre-experiments.…”

Section: Preparation Of the Experiments And Establishment Of The Expermentioning

confidence: 99%

An Experimental Study on the Water Hammer with Cavity Collapse under Multiple Interruptions

Yang

Wang

et al. 2020

Water

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Pressurized pipeline system damage is primarily caused by the highly destructive water hammer force. Currently, research on water hammer-caused collapse is mostly based on single-point collapse cases, but water hammer research, which involves multipoint collapse, is insufficient. Here, we establish an experimental platform to realize water hammers with multipoint collapse. With different schemes, i.e., various initial flow rates and valve closing speeds, we observed the hydraulic transient process with a high-speed camera, analyzed its characteristics and explained experimental phenomena with theoretical knowledge. Using experimental data analysis, we summarized the influencing factors and laws of the cavity length and water hammer pressure. Flow and pressure data for the different schemes were recorded to provide basic simulation data. Water column separation experimental phenomena were observed: completely atomized, completely cavitated and partially cavitated, and both cavitated and atomized. At the pump outlet, three hydraulic transition states occurred simultaneously in the horizontal pipe section: completely atomized, completely cavitated, and both cavitated and atomized. Two hydraulic transition states occurred in the knee region: completely and partially cavitated, and without atomization. The experimental results reveal that the initial flow rate and valve closing speed greatly affect the water hammer pressure rise and cavity length. The higher the initial flow rate and valve closing speed are, the larger the water hammer pressure rise and cavity length are.

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Modeling of cavitation peening: Jet, bubble growth and collapse, micro-jet and residual stresses

Cited by 32 publications

References 38 publications

Experimental and Analytical Study of under Water Pressure Wave Induced by the Implosion of a Bubble Generated by Focused Laser

Experimental and Analytical Study of under Water Pressure Wave Induced by the Implosion of a Bubble Generated by Focused Laser

Luminescence intensity of vortex cavitation in a Venturi tube changing with cavitation number

An Experimental Study on the Water Hammer with Cavity Collapse under Multiple Interruptions

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