Theoretical prediction of the yield of strong oxides under acoustic cavitation

doi:10.1088/1674-1056/28/1/014301

Abstract

Considering liquid viscosity, surface tension, and liquid compressibility, the effects of dynamical behaviors of cavitation bubbles on temperature and the amount of oxides inside the bubble are numerically investigated by acoustic field, regarding water as a work medium. The effects of acoustic frequency, acoustic pressure amplitude, and driving waveforms on bubble temperature and the number of oxides inside the bubbles by rapid collapse of cavitation bubbles are analysed. The results show that the changes of acoustic frequency, acoustic pressure amplitude, and driving waveforms not only have an effect on temperature and the number of oxides inside the bubble, but also influence the degradation species of pollution, which provides guidance for improving the degradation of water pollution.

Keywords: acoustic frequency acoustic pressure amplitude driving waveform cavitation behavior OH radical

Received: 20 September 2018
Revised: 05 November 2018
Accepted manuscript online:

PACS:	43.35.+d	(Ultrasonics, quantum acoustics, and physical effects of sound)
	43.30.+m	(Underwater sound)
	89.60.Ec	(Environmental safety)
	82.20.-w	(Chemical kinetics and dynamics)

Fund:

Project supported by the National Natural Science Foundation of China (Grant No. 11674207).

Corresponding Authors: Zhuangzhi Shen, Runyang Mo
E-mail: szz6@163.com;mmrryycn@snnu.edu.cn

Cite this article:

Jing Sun(孙晶), Zhuangzhi Shen(沈壮志), Runyang Mo(莫润阳) Theoretical prediction of the yield of strong oxides under acoustic cavitation 2019 Chin. Phys. B 28 014301

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