Identification of collapse patterns of cavitation bubbles close to a solid wall

Müller, Miloš; Hujer, Jan; Kotek, Michal; Zima, Patrik

doi:10.1051/epjconf/20134501120

Cited by 3 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, the collapse of cavitation bubbles has been studied experimentally. For example, high-speed photography and other techniques have been adopted to study the collapse process of single or multiple cavitation bubbles near flat walls [4][5][6] and uneven walls [7][8][9][10][11]. However, the above experiments only reveal the bubble morphology in the process of collapse, and it is difficult to obtain the fields of velocity, pressure and temperature by these experiments.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Cavitation Bubble Collapse inside an Inclined V-Shape Corner by Thermal Lattice Boltzmann Method

Li,

Ouyang,

Peng

et al. 2023

Water

View full text Add to dashboard Cite

Cavitation happening inside an inclined V-shaped corner is a common and important phenomenon in practical engineering. In the present study, the lattice Boltzmann models coupling velocity and temperature fields are adopted to investigate this complex collapse process. Based on a series of simulations, the fields of density, pressure, velocity and temperature are obtained simultaneously. Overall, the simulation results agree with the experiments, and they prove that the coupled lattice Boltzmann models are effective to study cavitation bubble collapse. It was found that the maximum temperature of bubble collapse increases approximately linearly with the rise of the distance between the single bubble center and the corner. Meanwhile, the velocity of the micro-jet increases and the pressure peak at the corner decreases correspondingly. Moreover, the effect of angle of the V-shaped wall on the collapse process of bubbles is similar to the effect of distance between the single bubble center and the corner. Moreover, with the increase in bubble radius, the maximum temperature of bubble collapse increases proportionally, the starting and ending of the micro-jet are delayed and the pressure peak at the corner becomes larger and also is delayed. In the double bubble collapse, the effect of distance between two bubble centers on the collapse process of bubbles is discussed in detail. Based on the present study, appropriate measures can be proposed to prevent or utilize cavitation in practical engineering.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Cavitation Bubble Collapse inside an Inclined V-Shape Corner by Thermal Lattice Boltzmann Method

Li,

Ouyang,

Peng

et al. 2023

Water

View full text Add to dashboard Cite

show abstract

“…Establishing the interaction between the bubbly liquid and solid boundary is important in order to estimate damage mechanisms and potential and there have been many investigations on the bubble behavior or bubble dynamics near solid boundaries [1][2][3][4][5][6][7] . Emission of shock waves from a collapsing bubble, which are high-pressure pulses originate from the compression of bubble contents due to pressure difference with the outer surface of the bubble, was firstly demonstrated by the famous work of Rayleigh [1] .…”

Section: Introductionmentioning

confidence: 99%