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Enhancement of non-uniform magnetic field on saturated film boiling of magnetic nanofluid (MNF)

文献类型：期刊论文

作者Zhao JF(赵建福)1,2; Wang T3; Feng Y4; Li HX4; Guo KK4
刊名INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
出版日期2019-11-01
卷号143页码:12
关键词Magnetic nanofluid (MNF) Non-uniform magnetic field Enhanced heat transfer Film boiling
ISSN号0017-9310
DOI10.1016/j.ijheatmasstransfer.2019.118594
通讯作者Li, Huixiong(huixiong@mail.xjtu.edu.cn)
英文摘要Previous studies pointed to the possibility of controlling magnetic nanofluid (MNF) boiling heat transfer by a magnetic field. In this study, the numerical model for the film boiling of the MNF was developed to explore the heat transfer and dynamics characteristics of MNF film boiling under the non-uniform magnetic field. Due to the existence of magnetic field intensity gradient, the dynamics of the separated bubbles in the non-uniform magnetic field was different from that in the uniform magnetic field. First, the single-mode film boiling was performed to study the dynamics of the separated bubble in detail. As the magnetic field intensity increased, the magnetic field force in the vertical direction increased, causing the bubble to escape and rise faster. Due to the non-uniformity of the magnetic field in the vertical and horizontal directions, the results of multi-mode film boiling influenced by the non-uniform magnetic field were different from those of single-mode film boiling. As a result of the horizontal component of the magnetic field force, the instability wavelength of film boiling became shorter and the bubble formation sites on the heated wall gradually deviated towards the central axis during the bubble generation stage. As the magnetic field intensity increased, the deviation of the bubble increased due to the increasing horizontal component of the magnetic field force. More importantly, the heat transfer performance of a MNF with a non-uniform magnetic field applied in this paper was enhanced with a higher magnetic field intensity. The enhancement effect is more pronounced in the film boiling for water near the critical pressure. (C) 2019 Elsevier Ltd. All rights reserved.
分类号一类
WOS关键词HEAT-TRANSFER CHARACTERISTICS ; NUMERICAL-SIMULATION ; FLOW ; FLUID ; FERROFLUID ; SURFACE ; PLATE
资助项目Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China (NSFC)[U1738105]
WOS研究方向Thermodynamics ; Engineering ; Mechanics
语种英语
WOS记录号WOS:000487564400088
资助机构Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China (NSFC)
其他责任者Li, Huixiong
源URL[http://dspace.imech.ac.cn/handle/311007/80640]  
专题力学研究所_国家微重力实验室
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Mech, CAS Key Lab Micrograv, Beijing 100190, Peoples R China;
3.North China Elect Power Univ, Sch Energy Power & Mech Engn, Baoding 071003, Peoples R China;
4.Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China;
推荐引用方式
GB/T 7714		 Zhao JF,Wang T,Feng Y,et al. Enhancement of non-uniform magnetic field on saturated film boiling of magnetic nanofluid (MNF)[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2019,143:12.
APA 赵建福,Wang T,Feng Y,Li HX,&Guo KK.(2019).Enhancement of non-uniform magnetic field on saturated film boiling of magnetic nanofluid (MNF).INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,143,12.
MLA 赵建福,et al."Enhancement of non-uniform magnetic field on saturated film boiling of magnetic nanofluid (MNF)".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 143(2019):12.

入库方式： OAI收割

来源：力学研究所

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