Investigation on meniscus shape and flow characteristics in open rectangular microgrooves heat sinks with micro-PIV

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	Investigation on meniscus shape and flow characteristics in open rectangular microgrooves heat sinks with micro-PIV
	Yu, Dong 1,2,3; Hu, Xuegong 1,3; Guo, Chaohong 1,3; Wang, Tao 1,3; Xu, Xianfeng 1,2,3; Tang, Dawei 1,3; Nie, Xuelei 4; Hu, Linghong 3,5; Gao, Fei 3,5; Zhao, Tao 3,6
刊名	APPLIED THERMAL ENGINEERING
	2013-11-03
卷号	61 期号:2 页码:716-727
关键词	Micro-PIV Shape of the meniscus Open rectangular microgroove heat sinks Curvature Flow stage Velocity profile
英文摘要	A micro particle image velocimetry (micro-Ply) system was used to investigate the shape of the meniscus and the flow characteristics in open rectangular microgrooves heat sinks. In experiment, the rectangular microgrooves heat sinks were placed in horizon, the inclined angle of 15, 25 and 35 degrees. The results show that the shape of meniscus in rectangular microgrooves heat sinks in horizon, the inclined angle of 15, 25 and 35 degrees with input heat flux is parabolic. At low heat flux, the shape of meniscus in horizontal microgrooves heat sink could be regarded unchanged and never touches bottom of the microgrooves; in inclined microgrooves, the bottom of the shape of meniscus gradually moves downward to the microgroove bottom. Flow stages in rectangular microgrooves heat sinks verify the assumption that there exist continuous accommodation stage and corner flow stage. The mean curvature of meniscus in horizontal microgrooves almost does not change along axial direction of microgrooves. The mean curvature of the meniscus increases along the axial direction of inclined microgrooves heat sinks. Velocity decreases from the middle to both of the side walls. The mean velocity profile is not symmetrical, and this is due to the different roughness of two side walls. (C) 2013 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
研究领域[WOS]	Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
关键词[WOS]	GROOVED SURFACE ; MU-PIV ; FILM ; MICROCHANNELS ; MODEL
收录类别	SCI
语种	英语
WOS记录号	WOS:000329081000079
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/98849]
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Wuxi Heat Exchanger Engn Res Ctr, Wuxi 214092, Peoples R China 4.Shenhua Sci & Technol Dev Co Ltd, Beijing 100011, Peoples R China 5.Guizhou Yonghong Aviat Machinery Co Ltd, Guiyang 550009, Peoples R China 6.Wuxi Mashan Yonghong Heat Exchanger Co Ltd, Wuxi 214092, Peoples R China
推荐引用方式 GB/T 7714	Yu, Dong,Hu, Xuegong,Guo, Chaohong,et al. Investigation on meniscus shape and flow characteristics in open rectangular microgrooves heat sinks with micro-PIV[J]. APPLIED THERMAL ENGINEERING,2013,61(2):716-727.
APA	Yu, Dong.,Hu, Xuegong.,Guo, Chaohong.,Wang, Tao.,Xu, Xianfeng.,...&Zhao, Tao.(2013).Investigation on meniscus shape and flow characteristics in open rectangular microgrooves heat sinks with micro-PIV.APPLIED THERMAL ENGINEERING,61(2),716-727.
MLA	Yu, Dong,et al."Investigation on meniscus shape and flow characteristics in open rectangular microgrooves heat sinks with micro-PIV".APPLIED THERMAL ENGINEERING 61.2(2013):716-727.