| The nanofluid flows in the channel with linearly varying wall temperature | |
胡开鑫1); Huang, Yan1; Zhang, Xin-Yuan1; Wang, Sheng1; Chen QS(陈启生)2,3
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| Corresponding Author | Hu, Kai-Xin(hukaixin@nbu.edu.cn) |
| Source Publication | CASE STUDIES IN THERMAL ENGINEERING
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| 2021-12-01 | |
| Volume | 28Pages:15 |
| ISSN | 2214-157X |
| Abstract | In many applications of heat exchanger, due to the heat convection, the wall temperature of the channel usually varies along the streamwise direction. The present paper reports the analysis of nanofluid flows in the channel with linearly varying wall temperature. The non-uniform equilibrium fluid medium model proposed by Buongiorno is applied, where the Brownian diffusion and thermophoresis of nanoparticles are considered. The numerical solutions of laminar flows are determined by the iteration method in conjunction with the Chebyshev collocation method. The results show that: (1) there is a Gaussian distribution of nanoparticle concentration in the wall-normal direction for convective cooling, while its standard deviation depends on the Peclet number and the ratio of Brownian diffusivity to thermophoretic diffusivity; (2) there are obvious stratifications for the viscosity and thermal conductivity in the flow; (3) the velocity decreases significantly with the increase of nanoparticle concentration for convective heating, while there is only a little decrease for the velocity in the cold region for convective cooling. |
| Keyword | Nanofluids Poiseuille flow Heat transfer Nanoparticle concentration Viscosity stratification |
| DOI | 10.1016/j.csite.2021.101602 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000720793100023 |
| WOS Keyword | HEAT-TRANSFER ENHANCEMENT ; THERMAL-PROPERTIES ; CONVECTION ; VISCOSITY |
| WOS Research Area | Thermodynamics |
| WOS Subject | Thermodynamics |
| Funding Project | National Natural Science Foundation of China[11872032] ; National Natural Science Foundation of China[11772344] ; Zhejiang Provincial Natural Science Foundation[LY21A020006] ; K. C. Wong Magna Fund ; Marine Biotechnology and Marine Engineering Discipline Group in Ningbo University[422004582] |
| Funding Organization | National Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation ; K. C. Wong Magna Fund ; Marine Biotechnology and Marine Engineering Discipline Group in Ningbo University |
| Classification | 一类 |
| Ranking | 3+ |
| Contributor | Hu, Kai-Xin |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/88032 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.Ningbo Univ, Sch Mech Engn & Mech, Key Lab Impact & Safety Engn, Minist Educ, Ningbo 315211, Zhejiang, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | 胡开鑫1),Huang, Yan,Zhang, Xin-Yuan,et al. The nanofluid flows in the channel with linearly varying wall temperature[J]. CASE STUDIES IN THERMAL ENGINEERING,2021,28:15. |
| APA | 胡开鑫1),Huang, Yan,Zhang, Xin-Yuan,Wang, Sheng,&陈启生.(2021).The nanofluid flows in the channel with linearly varying wall temperature.CASE STUDIES IN THERMAL ENGINEERING,28,15. |
| MLA | 胡开鑫1),et al."The nanofluid flows in the channel with linearly varying wall temperature".CASE STUDIES IN THERMAL ENGINEERING 28(2021):15. |
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| The nanofluid flows （4837KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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