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Phase change mass transfer model for frost growth and densification

文献类型：期刊论文

作者Wu, Xiaomin1; Ma, Qiang1; Chu, Fuqiang1; Hu, Shan2
刊名INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
出版日期2016-05-01
卷号96页码:11-19
关键词Frost Mass transfer model Criterion Local cooling Frost growth and densification Morphology
英文摘要A frosting mechanism was used to develop a phase change mass transfer model to predict the frost layer growth and densification. The model with a criterion can describe the mass transfer of water vapor from the humid air to increase the frost thickness and the frost density. Frost formation on a cold surface with local cooling was simulated by using the model as a source term in FLUENT to predict the frost morphology, temperature distribution and frost weight which are all in good agreement with the experimental results. The results show that the frost first forms around the cooling block and then extends gradually to other directions, with the frost above the cooling block having the greatest density. The average frost thickness increases gradually with time with the growth rate slowing down, while the average frost density increases with the increases rate getting faster. The temperature distribution in the computational domain is related to the frost layer morphology and the frost surface temperature is usually lower than the freezing point temperature. As the frost layer grows, the average air velocity increases with the maximum local velocity located above the thickest part of the frost layer. (C) 2016 Elsevier Ltd. All rights reserved.
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Thermodynamics ; Engineering, Mechanical ; Mechanics
研究领域[WOS]Thermodynamics ; Engineering ; Mechanics
关键词[WOS]TUBE HEAT-EXCHANGER ; COLD FLAT SURFACE ; PLATE ; PREDICTION ; FLOW
收录类别SCI
语种英语
WOS记录号WOS:000371841900002
源URL[http://ir.etp.ac.cn/handle/311046/112439]  
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.Tsinghua Univ, Dept Thermal Engn, Beijing Key Lab Utilizat & Reduct Technol CO2, Key Lab Thermal Sci & Power Engn,Minist Educ, Beijing 100084, Peoples R China
2.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Xiaomin,Ma, Qiang,Chu, Fuqiang,et al. Phase change mass transfer model for frost growth and densification[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2016,96:11-19.
APA Wu, Xiaomin,Ma, Qiang,Chu, Fuqiang,&Hu, Shan.(2016).Phase change mass transfer model for frost growth and densification.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,96,11-19.
MLA Wu, Xiaomin,et al."Phase change mass transfer model for frost growth and densification".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 96(2016):11-19.

入库方式： OAI收割

来源：工程热物理研究所

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