Viscous dissipation effect on entropy generation in curved square microchannels
文献类型:期刊论文
作者 | Guo, Jiangfeng1; Xu, Mingtian2; Cai, Jun1; Huai, Xiulan1 |
刊名 | ENERGY
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出版日期 | 2011-08-01 |
卷号 | 36期号:8页码:5416-5423 |
关键词 | Curved square microchannels Entropy generation Viscous dissipation Numerical simulation Laminar flow Heat transfer |
英文摘要 | The viscous dissipation effect on the thermodynamic performance of the curved square microchannels in laminar flow is numerically investigated. The classical Navier-Stokes equations are adopted: aniline and ethylene glycol are selected as the working fluids. The results show that the heat transfer entropy generation number and frictional entropy generation number augment relatively under viscous dissipation effect for the case of fluid heated, and the opposite results can be found for the case of fluid cooled. The heat transfer entropy generation number increases with Reynolds number at large Reynolds number region under viscous dissipation effect when ethylene glycol is heated. The total entropy generation number extremum exists for aniline, and the extremum happens earlier when aniline is heated than when aniline is cooled. The smaller the curvature radius is, the earlier the extremum appears. The extremum does not occur for ethylene glycol due to the predomination of frictional entropy generation in the total entropy generation. (C) 2011 Elsevier Ltd. All rights reserved. |
WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
类目[WOS] | Thermodynamics ; Energy & Fuels |
研究领域[WOS] | Thermodynamics ; Energy & Fuels |
关键词[WOS] | LAMINAR FORCED-CONVECTION ; HEAT-TRANSFER ; MICRO-CHANNELS ; RECTANGULAR MICROCHANNELS ; BRINKMAN NUMBER ; LIQUID FLOWS ; FLUID ; PIPES |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000295237300083 |
公开日期 | 2015-12-22 |
源URL | [http://ir.etp.ac.cn/handle/311046/106515] ![]() |
专题 | 工程热物理研究所_中国科学院工程热物理所(论文库)_期刊论文(SCI) |
作者单位 | 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.Shandong Univ, Inst Thermal Sci & Technol, Jinan 250061, Peoples R China |
推荐引用方式 GB/T 7714 | Guo, Jiangfeng,Xu, Mingtian,Cai, Jun,et al. Viscous dissipation effect on entropy generation in curved square microchannels[J]. ENERGY,2011,36(8):5416-5423. |
APA | Guo, Jiangfeng,Xu, Mingtian,Cai, Jun,&Huai, Xiulan.(2011).Viscous dissipation effect on entropy generation in curved square microchannels.ENERGY,36(8),5416-5423. |
MLA | Guo, Jiangfeng,et al."Viscous dissipation effect on entropy generation in curved square microchannels".ENERGY 36.8(2011):5416-5423. |
入库方式: OAI收割
来源:工程热物理研究所
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