期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：240
期号：6
页码：1-9
DOI：10.1088/1755-1315/240/6/062042
出版社：IOP Publishing
摘要：Hydrodynamic cavitation is commonly found in hydraulic machineries, causing damages to equipment, reducing efficiency and making noise, which has been researched intensely in past years. In these processes, cavitation bubbles play essential roles, and their behaviors and interactions influence the effects of cavitation significantly. In this paper, the effect of turbulence on the dynamics of two bubbles generated by an orifice plate is studied. The oscillation of the two bubbles and the internal maximum temperature of the two bubbles during collapse under the influence of turbulence are investigated numerically. The numerical results show that the existence of the larger bubble exert restrained impact on the oscillation behavior of the smaller bubble. When the distance between the two bubbles decreases, the inhibition effect grows stronger. The maximum internal temperature of the smaller bubble rises violently, while the maximum internal temperature of the larger bubble is affected little. The influences of two parameters (i.e., cavitation number, aperture ratio) on the fluctuation frequency and intensity of turbulence affecting bubble behaviors are also investigated.
