scholarly journals THE NUMERICAL SIMULATION OF UNSTEADY CAVITATION EVOLUTION INDUCED BY PRESSURE WAVE

2014 ◽  
Vol 34 ◽  
pp. 1460374
Author(s):  
B.C. KHOO ◽  
J.G. ZHENG
Keyword(s):  
Numerical Simulation ◽  
Cavitation Bubble ◽  
Pressure Wave ◽  
External Perturbation ◽  
Compressible Liquid ◽  
Cavitating Flow ◽  
Bubble Collapse ◽  
Material Erosion ◽  
Noise Vibration ◽  
Compressibility Effects

The present study is focused on the numerical simulation of pressure wave propagation through the cavitating compressible liquid flow, its interaction with cavitation bubble and the resulting unsteady cavitation evolution. The compressibility effects of liquid water are taken into account and the cavitating flow is governed by one-fluid cavitation model which is based on the compressible Euler equations with the assumption that the cavitation is the homogeneous mixture of liquid and vapour which are locally under both kinetic and thermodynamic equilibrium. Several aspects of the method employed to solve the governing equations are outlined. The unsteady features of cavitating flow due to the external perturbation, such as the cavitation deformation and collapse and consequent pressure increase are resolved numerically and discussed in detail. It is observed that the cavitation bubble collapse is accompanied by the huge pressure surge of order of 100 bar, which is thought to be responsible for the material erosion, noise, vibration and loss of efficiency of operating underwater devices.

Les Numerical Simulation of Cavitation Bubble Shedding on Ale 25 and Ale 15 Hydrofoils

2009 ◽  
Vol 21 (6) ◽  
pp. 807-813 ◽  
Author(s):  
De-min Liu ◽  
Shu-hong Liu ◽  
Yu-lin Wu ◽  
Hong-yuan Xu
Keyword(s):  
Numerical Simulation ◽  
Cavitation Bubble

scholarly journals Numerical simulation of cavitation bubble dynamics induced by ultrasound waves in a high frequency reactor

2000 ◽  
Vol 7 (4) ◽  
pp. 217-227 ◽  
Author(s):  
G. Servant ◽  
J.P. Caltagirone ◽  
A. Gérard ◽  
J.L. Laborde ◽  
A. Hita
Keyword(s):  
Numerical Simulation ◽  
High Frequency ◽  
Cavitation Bubble ◽  
Bubble Dynamics ◽  
Ultrasound Waves

scholarly journals Analysis of the Influencing Factors of the Hydroxyl Radical Yield in a Hydrodynamic Cavitation Bubble of a Chitosan Solution Based on a Numerical Simulation

ACS Omega ◽  
2021 ◽  
Vol 6 (5) ◽  
pp. 3736-3744
Author(s):  
Xiangyu Zhang ◽  
Xinfeng Zhu ◽  
Yan Cao ◽  
Kunming Zhang ◽  
Yongchun Huang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Hydroxyl Radical ◽  
Influencing Factors ◽  
Cavitation Bubble ◽  
Chitosan Solution ◽  
Hydrodynamic Cavitation ◽  
Radical Yield

Numerical simulation of cavitation bubble collapse within a droplet

2017 ◽  
Vol 152 ◽  
pp. 157-163 ◽  
Author(s):  
Lü Ming ◽  
Ning Zhi ◽  
Sun Chunhua
Keyword(s):  
Numerical Simulation ◽  
Cavitation Bubble ◽  
Bubble Collapse
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