Heat transfer during cavitation bubble collapse
Article
Article Title | Heat transfer during cavitation bubble collapse |
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ERA Journal ID | 3658 |
Article Category | Article |
Authors | Qin, Zongyi (Author) and Alehossein, Habib (Author) |
Journal Title | Applied Thermal Engineering |
Journal Citation | 105, pp. 1067-1075 |
Number of Pages | 9 |
Year | 2016 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 1359-4311 |
1873-5606 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.applthermaleng.2016.01.049 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S1359431116001046 |
Abstract | Cavitation phenomenon has found various industrial applications. The collapse process of a cavitation bubble is extremely violent in its final stage and the gas within the bubble can become extraordinarily hot. This paper introduces a heat transfer model to calculate accurately the temperature change and heat transfer during a bubble collapse based on the Rayleigh–Plesset (RP) equation and CFD modelling. To demonstrate the variations of pressure, temperature and velocity distribution in the liquid and bubble, a two-phase compressible CFD model developed to simulate the process of the bubble collapse. Results from the RP equation – modified with conduction and radiation effects – match the numerical CFD results very well. Further investigations were carried out on the bubble collapse and temperature increase, heat transfer rate by conduction and radiation, and accumulative heat transfer of bubbles with different bubble sizes. When a cavitation bubble with initial maximum radius of 2 mm collapses, the maximum temperature of the air can rise up over 0.02 mega degrees Kelvin (MK) and the transferred heat by radiation |
Keywords | heat transfer; cavitation; conduction; radiation; CFD; bubble simulation; Rayleigh–Plesset equation |
ANZSRC Field of Research 2020 | 490399. Numerical and computational mathematics not elsewhere classified |
Public Notes | Permanent restricted access to Published version in accordance with the copyright policy of the publisher. |
Byline Affiliations | Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia |
School of Civil Engineering and Surveying | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q367v/heat-transfer-during-cavitation-bubble-collapse
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