Effect of Substrate Microstructure on Thermocapillary Flow and Heat Transfer of Nanofluid Droplet on Heated Wall | |
Jiang, Yanni1; Chi, Faxuan1; Chen QS(陈启生)2; Zhou, Xiaoming1 | |
Corresponding Author | Zhou, Xiaoming([email protected]) |
Source Publication | MICROGRAVITY SCIENCE AND TECHNOLOGY |
2021-06-01 | |
Volume | 33Issue:3Pages:10 |
ISSN | 0938-0108 |
Abstract | 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. |
Keyword | Droplet Substrate microstructure Nanofluid Thermocapillary convection Two-phase mixture model Heat transfer |
DOI | 10.1007/s12217-021-09888-2 |
Indexed By | SCI ; EI |
Language | 英语 |
WOS ID | WOS:000651810900001 |
WOS Keyword | ENTROPY GENERATION ; DYNAMIC VISCOSITY ; THERMAL PATTERNS ; CONVECTION ; EVAPORATION ; SURFACES |
WOS Research Area | Engineering ; Thermodynamics ; Mechanics |
WOS Subject | Engineering, Aerospace ; Thermodynamics ; Mechanics |
Funding Project | 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] |
Funding Organization | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Changzhou science and technology plan (Applied Basic Research) projects |
Classification | 二类 |
Ranking | 3 |
Contributor | Zhou, Xiaoming |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/86718 |
Collection | 微重力重点实验室 |
Affiliation | 1.Hohai Univ, Coll Mech & Elect Engn, Changzhou, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China |
Recommended Citation GB/T 7714 | Jiang, Yanni,Chi, Faxuan,Chen QS,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.Rp_Au:Zhou, Xiaoming |
APA | Jiang, Yanni,Chi, Faxuan,陈启生,&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. |
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