Open AccessCFD Simulation of Cavitation Bubble Collapse near a Rectangular Groove Wall
Author(s) -
Yifeng Yu,
Chuang Sun,
Yazhe Liu,
Yang Lu,
Dongsheng Xia
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/538/1/012056
Subject(s) - bubble , cavitation , volume of fluid method , mechanics , groove (engineering) , jet (fluid) , materials science , shock (circulatory) , compressibility , surface tension , shock wave , volume (thermodynamics) , viscosity , computational fluid dynamics , flow (mathematics) , physics , thermodynamics , composite material , medicine , metallurgy
The collapse process of a vapour bubble near to a rectangular groove wall is numerically simulated based on the Volume of Fluid (VOF) method with considering bubble surface tension, liquid viscosity and gas compressibility. Under the conditions of different stand-off parameters, evolution of the bubble profile, the jet velocity and the shock pressure around the bubble are obtained. Variation of the maximum jet velocity and the shock pressure around the bubble with the stand-off parameters is analyzed. Moreover, the impact pressure on the groove wall induced by the jet and the shock wave is also discussed, respectively. Cavitation erosion of the groove wall is explored for different stand-off parameters.