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	Variable-property effect on liquid flow and heat transfer in microchannels
	Liu, J. T. ; Peng, X. F. ; Wang, B. X.
	2010-05-11 ; 2010-05-11
关键词	convection microchannel temperature-dependent property flow and thermal re-development TEMPERATURE-DEPENDENT VISCOSITY FORCED-CONVECTION FLUID-FLOW REFRIGERATORS CHANNELS Engineering, Chemical
中文摘要	Numerical investigation was conducted in an effort to verify the variable-property effect of thermally developing flow in microchannel cooling passages. Temperature-dependent viscosity and thermal conductivity of liquid water were taken into account in theoretical modeling. Two-dimensional simulation was performed for low Reynolds number flow in a 100 mu m single channel subjected to localized heat flux and different inlet temperatures. The fundamental characteristics of flow and thermal re-development were carefully analyzed. The heat transfer enhancement was described by defining the peak value and location of relative Nusselt number distribution as Delta Nu%(max) and X-max. Strong non-linear interaction mechanism prevailed in the correlation of Delta Nu%(max) and X-max due to high heat flux condition and dramatic rise of liquid temperature. (C) 2008 Elsevier B.V. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCIENCE SA ; LAUSANNE ; PO BOX 564, 1001 LAUSANNE, SWITZERLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/25645]
专题	清华大学
推荐引用方式 GB/T 7714	Liu, J. T.,Peng, X. F.,Wang, B. X.. Variable-property effect on liquid flow and heat transfer in microchannels[J],2010, 2010.
APA	Liu, J. T.,Peng, X. F.,&Wang, B. X..(2010).Variable-property effect on liquid flow and heat transfer in microchannels..
MLA	Liu, J. T.,et al."Variable-property effect on liquid flow and heat transfer in microchannels".(2010).

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