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

doi:10.1016/j.ijheatmasstransfer.2019.118594

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	Enhancement of non-uniform magnetic field on saturated film boiling of magnetic nanofluid (MNF)
	Guo KK 1; Li HX1 ; Feng Y 1; Wang T2 ; Zhao JF(赵建福)3,4
通讯作者	Li, Huixiong(huixiong@mail.xjtu.edu.cn)
发表期刊	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
	2019-11-01
卷号	143 页码:12
ISSN	0017-9310
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.
关键词	Magnetic nanofluid (MNF) Non-uniform magnetic field Enhanced heat transfer Film boiling
DOI	10.1016/j.ijheatmasstransfer.2019.118594
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000487564400088
关键词[WOS]	HEAT-TRANSFER CHARACTERISTICS ; NUMERICAL-SIMULATION ; FLOW ; FLUID ; FERROFLUID ; SURFACE ; PLATE
WOS研究方向	Thermodynamics ; Engineering ; Mechanics
WOS类目	Thermodynamics ; Engineering, Mechanical ; Mechanics
资助项目	Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China (NSFC)[U1738105]
项目资助者	Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China (NSFC)
论文分区	一类
力学所作者排名	5
RpAuthor	Li, Huixiong
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/80640
专题	微重力重点实验室
作者单位	1.Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China; 2.North China Elect Power Univ, Sch Energy Power & Mech Engn, Baoding 071003, Peoples R China; 3.Chinese Acad Sci, Inst Mech, CAS Key Lab Micrograv, Beijing 100190, Peoples R China; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Guo KK,Li HX,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	Guo KK,Li HX,Feng Y,Wang T,&赵建福.(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	Guo KK,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.

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