Effect of viscous heating on heat transfer performance in microchannel slip flow region

被引：32

作者：

Zhang, Tiantian ^{[1
,2
]}

Jia, Li ^{[2
]}

Yang, Lixin ^{[2
]}

Jaluria, Yogesh ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Mech & Aerosp Engn, Piscataway, NJ 08854 USA

[2] Beijing Jiaotong Univ, Sch Mech & Elect Control Engn, Beijing 100044, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2010年 / 53卷 / 21-22期

基金：

中国国家自然科学基金;

关键词：

Microchannel; Heat transfer; Superposition principle; Viscous heating; Slip flow; Temperature jump; FORCED PIPE-FLOW; BRINKMAN NUMBER; POISEUILLE FLOW; PART; DISSIPATION; MICROTUBES;

D O I：

10.1016/j.ijheatmasstransfer.2010.05.055

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Based on the superposition principle, an analytical solution for steady convective heat transfer in a two-dimensional microchannel in the slip flow region is obtained, including the effects of velocity slip and temperature jump at the wall, which are the main characteristics of flow in the slip flow region, and viscous heating effects in the calculations. The cases of constant heat flux boundary conditions and one wall as adiabatic and the other wall at constant heat flux input are studied. The solution method is verified for the cases where micro-scale effects are neglected. The effects of viscous heating on the temperature profiles and on the heat transfer performance are analyzed in detail. It is concluded that the effect of viscous heating, like an internal energy source, heats the fluid along the flow direction and severely distorts the temperature profiles. The effects of key parameters, such as the Brinkman and Knudsen numbers, on the Nusselt number, which expresses the heat transfer performance are investigated. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：4927 / 4934

页数：8

共 32 条

[1] Laminar forced convection with viscous dissipation in a Couette-Poiseuille flow between parallel plates [J].

Aydin, O ;

Avci, M .

APPLIED ENERGY, 2006, 83 (08) :856-867

[2] Heat and fluid flow characteristics of gases in micropipes [J].

Aydin, O ;

Avci, M .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2006, 49 (9-10) :1723-1730

[3] Viscous-dissipation effects on the heat transfer in a Poiseuille flow [J].

Aydin, O ;

Avci, M .

APPLIED ENERGY, 2006, 83 (05) :495-512

[4] Effects of viscous dissipation on the heat transfer in a forced pipe flow. Part 2: Thermally developing flow [J].

Aydin, O .

ENERGY CONVERSION AND MANAGEMENT, 2005, 46 (18-19) :3091-3102

[5] Effects of viscous dissipation on the heat transfer in forced pipe flow. Part 1: both hydrodynamically and thermally fully developed flow [J].

Aydin, O .

ENERGY CONVERSION AND MANAGEMENT, 2005, 46 (05) :757-769

[6] Analysis of laminar heat transfer in micro-Poiseuille flow [J].

Aydin, Orhan ;

Avci, Mete .

INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2007, 46 (01) :30-37

[7] SIMULATION OF HEAT AND MOMENTUM-TRANSFER IN COMPLEX MICROGEOMETRIES [J].

BESKOK, A ;

KARNIADAKIS, GE .

JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER, 1994, 8 (04) :647-655

[8] Fully-developed heat transfer in annuli with viscous dissipation [J].

Coelho, P. M. ;

Pinho, F. T. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2006, 49 (19-20) :3349-3359

[9] Effects of viscous dissipation and temperature dependent viscosity in thermally and simultaneously developing laminar flows in microchannels [J].

Del Giudice, S. ;

Nonino, C. ;

Savino, S. .

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2007, 28 (01) :15-27

[10] The fluid mechanics of microdevices - The Freeman Scholar Lecture [J].

Gad-el-Hak, M .

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 1999, 121 (01) :5-33

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