Collapse of Vapor-Filled Bubbles in Liquid Helium

Pal, Apurba Kumar; Joseph, E. M.; Vadakkumbatt, Vaisakh; Yadav, Neha; Srinivasan, Vinod; Maris, Humphrey J.; Ghosh, Ambarish

doi:10.1007/s10909-017-1782-2

Cited by 5 publications

(1 citation statement)

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“…Lauterborn [3] studied the collapse of cavitation bubbles near a wall. Some scholars have also conducted in-depth physical research on cavitation [4][5][6][7][8][9][10][11][12][13]. However, although the bubble collapse process can be observed through this test method, data such as pressure field and velocity field are not available.…”

Section: Introductionmentioning

confidence: 99%

Study of Cavitation Bubble Collapse near a Wall by the Modified Lattice Boltzmann Method

Mao

Peng

Zhang

2018

Water

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In this paper, an improved lattice Boltzmann Shan‒Chen model coupled with Carnahan-Starling equation of state (C-S EOS) and the exact differential method (EDM) force scheme is used to simulate the cavitation bubble collapse in the near-wall region. First, the collapse of a single cavitation bubble in the near-wall region was simulated; the results were in good agreement with the physical experiment and the stability of the model was verified. Then the simulated model was used to simulate the collapse of two cavitation bubbles in the near-wall region. The main connection between the two cavitation bubble centre lines and the wall surface had a 45° angle and parallel and the evolution law of cavitation bubbles in the near-wall region is obtained. Finally, the effects of a single cavitation bubble and double cavitation bubble on the wall surface in the near-wall region are compared, which can be used to study the method to reduce the influence of cavitation on solid materials in practical engineering. The cavitation bubble collapse process under a two-dimensional pressure field is visualized, and the flow field is used to describe the morphological changes of cavitation bubble collapse in the near-wall region. The improved lattice Boltzmann Method (LBM) Shan‒Chen model has many advantages in simulating cavitation problems, and will provide a reference for further simulations.

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