Effect of Substrate Microstructure on Thermocapillary Flow and Heat Transfer of Nanofluid Droplet on Heated Wall

doi:10.1007/s12217-021-09888-2

	Effect of Substrate Microstructure on Thermocapillary Flow and Heat Transfer of Nanofluid Droplet on Heated Wall
	Jiang, Yanni 2; Chi, Faxuan 2; Chen, Qisheng 1; Zhou, Xiaoming 2
刊名	MICROGRAVITY SCIENCE AND TECHNOLOGY
	2021-06-01
卷号	33 期号:3 页码:10
关键词	Droplet Substrate microstructure Nanofluid Thermocapillary convection Two-phase mixture model Heat transfer
ISSN号	0938-0108
DOI	10.1007/s12217-021-09888-2
通讯作者	Zhou, Xiaoming(xmzhou@hhu.edu.cn)
英文摘要	In order to reveal the effect of substrate microstructure on heat transfer of nanofluid droplet evaporation, the thermocapillary flow characteristics and heat transfer performance of nanofluid droplet on different substrates are investigated. The two-phase mixture model is used to simulate the nanofluid flow, and three kinds of micro-structured substrates (namely, sawtooth, rectangle, and parabola structures) are considered. The computational results show that micro-structured substrate can affect the temperature and flow field distributions inside the droplet, and the petal structure of isotherm and flow velocity of smooth substrate is larger than that with micro-structured substrates. The average heat flux at droplet surface increases with substrate temperature increasing, the average heat flux with rectangle substrate is larger than smooth substrate, while that of sawtooth and parabola substrate is smaller. With the increase of nanoparticle volume fraction the average heat flux at droplet surface almost increases linearly.
资助项目	National Natural Science Foundation of China[51976080] ; Fundamental Research Funds for the Central Universities[B200201036] ; Changzhou science and technology plan (Applied Basic Research) projects[CJ20200069]
WOS关键词	ENTROPY GENERATION ; DYNAMIC VISCOSITY ; THERMAL PATTERNS ; CONVECTION ; EVAPORATION ; SURFACES
WOS研究方向	Engineering ; Thermodynamics ; Mechanics
语种	英语
WOS记录号	WOS:000651810900001
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Changzhou science and technology plan (Applied Basic Research) projects
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/86717]
专题	力学研究所_国家微重力实验室
通讯作者	Zhou, Xiaoming
作者单位	1.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China 2.Hohai Univ, Coll Mech & Elect Engn, Changzhou, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Yanni,Chi, Faxuan,Chen, Qisheng,et al. Effect of Substrate Microstructure on Thermocapillary Flow and Heat Transfer of Nanofluid Droplet on Heated Wall[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2021,33(3):10.
APA	Jiang, Yanni,Chi, Faxuan,Chen, Qisheng,&Zhou, Xiaoming.(2021).Effect of Substrate Microstructure on Thermocapillary Flow and Heat Transfer of Nanofluid Droplet on Heated Wall.MICROGRAVITY SCIENCE AND TECHNOLOGY,33(3),10.
MLA	Jiang, Yanni,et al."Effect of Substrate Microstructure on Thermocapillary Flow and Heat Transfer of Nanofluid Droplet on Heated Wall".MICROGRAVITY SCIENCE AND TECHNOLOGY 33.3(2021):10.