期刊
ULTRASONICS SONOCHEMISTRY
卷 62, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.ultsonch.2019.104873
关键词
Lattice Boltzmann model; Cavitation; Thermodynamic; Bubble; Collapse
资金
- State Key Laboratory of Acoustics, Chinese Academy of Sciences [SKLA201913]
- National Natural Science Foundation of China [11874140, 11574072]
- National Key Research and Development Program of China [2016YFC0401600]
- Primary Research and Development Plan of Jiangsu Province, China [BE2016056]
- Fundamental Research Funds for the Central Universities of China [2017B17814, 2019B01414]
- postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX18_0552]
- postgraduate Research & Practice Innovation Program of Changzhou Campus, Hohai University [17B011_10]
The thermodynamic of cavitation bubble collapsing is a complex fundamental issue for cavitation application and prevention. The pseudopotential and thermal multi-relaxation-time lattice Boltzmann method (MRT-LBM) is adopted to investigate the thermodynamic of collapsing cavitation bubble in this paper. The simulation results satisfy the maximum temperature equation of the bubble collapse, which derived from the Rayleigh-Plesset (R-P) equation. The validity of thermal MRT-LBM in simulating the collapse process of cavitation bubble is verified. It shows that the temperature evolution of vapor-liquid phase is well captured. Furthermore, the two-dimensional (2D) temperature, velocity and pressure field of the bubble near a solid wall are analyzed. The maximum temperature inside the bubble and wall temperature under different position offset parameters are discussed in details.
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