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Cavitation Bubble Collapse Near a Heated Wall and Its Effect on the Heat Transfer

文献类型：期刊论文

作者Liu, Bin1,2; Cai, Jun1; Huai, Xiulan1; Li, Fengchao1
刊名JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME
出版日期2014-02-01
卷号136期号:2页码:022901
关键词cavitation near-wall bubble collapse heat transfer enhancement microjet VOF
英文摘要In the present work, a numerical investigation on the mechanism of heat transfer enhancement by a cavitation bubble collapsing near a heated wall has been presented. The Navier-Stokes equations and volume of fluid (VOF) model are employed to predict the flow state and capture the liquid-gas interface. The model was validated by comparing with the experimental data. The results show that the microjet violently impinges on the heated wall after the bubble collapses completely. In the meantime, the thickness of the thermal boundary layer and the wall temperature decrease significantly within the active scope of the microjet. The fresh low-temperature liquid and the impingement brought by the microjet should be responsible for the heat transfer reinforcement between the heated wall and the liquid. In addition, it is found that the impingement width of the microjet on the heated wall always keeps 20% of the bubble diameter. And, the enhancement degree of heat transfer significantly depends on such factors as stand-off distance, saturated vapor pressure, and initial bubble radius.
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Thermodynamics ; Engineering, Mechanical
研究领域[WOS]Thermodynamics ; Engineering
关键词[WOS]BOUNDARIES ; GENERATION ; DYNAMICS
收录类别SCI
语种英语
WOS记录号WOS:000331474700014
源URL[http://ir.etp.ac.cn/handle/311046/106042]  
专题工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100080, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Bin,Cai, Jun,Huai, Xiulan,et al. Cavitation Bubble Collapse Near a Heated Wall and Its Effect on the Heat Transfer[J]. JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME,2014,136(2):022901.
APA Liu, Bin,Cai, Jun,Huai, Xiulan,&Li, Fengchao.(2014).Cavitation Bubble Collapse Near a Heated Wall and Its Effect on the Heat Transfer.JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME,136(2),022901.
MLA Liu, Bin,et al."Cavitation Bubble Collapse Near a Heated Wall and Its Effect on the Heat Transfer".JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME 136.2(2014):022901.

入库方式： OAI收割

来源：工程热物理研究所

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