Thermodynamic of collapsing cavitation bubble investigated by pseudopotential and thermal MRT-LBM

Yu Yang; Minglei Shan; Xuefen Kan; Yanqin Shangguan; Qingbang Han

doi:10.1016/j.ultsonch.2019.104873

Thermodynamic of collapsing cavitation bubble investigated by pseudopotential and thermal MRT-LBM

Ultrason Sonochem. 2020 Apr:62:104873. doi: 10.1016/j.ultsonch.2019.104873. Epub 2019 Nov 12.

Authors

Yu Yang¹, Minglei Shan², Xuefen Kan², Yanqin Shangguan³, Qingbang Han⁴

Affiliations

¹ Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Hohai University, Changzhou 213022, China; College of Computer and Information, Hohai University, Nanjing 210000, China.
² Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Hohai University, Changzhou 213022, China.
³ College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213022, China.
⁴ Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Hohai University, Changzhou 213022, China. Electronic address: 20111841@hhu.edu.cn.

PMID: 31806544
DOI: 10.1016/j.ultsonch.2019.104873

Abstract

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.

Keywords: Bubble; Cavitation; Collapse; Lattice Boltzmann model; Thermodynamic.