Fully developed mixed convection flow in a vertical channel filled with nanofluids

被引：51

作者：

Xu, Hang ^{[1
]}

Pop, Ioan ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China

[2] Univ Cluj, Fac Math, R-3400 Cluj Napoca, Romania

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2012年 / 39卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Mixed convection; Heat transfer; Channel; Nanoparticles; Analytical solutions; HEAT-TRANSFER ENHANCEMENT; THERMAL-CONDUCTIVITY; NATURAL-CONVECTION; FORCED-CONVECTION; LAYER;

D O I：

10.1016/j.icheatmasstransfer.2012.06.003

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, the fully developed mixed convection flow in a vertical channel filled with nanofluids is investigated. Analytical solutions for both the buoyancy-assisted and -opposed flow are obtained. Further analysis shows that the analytical solution for the opposing flow is only valid for a certain region of the Rayleigh number Ra in physical sense. Besides, the effects of the nanoparticle volume fraction phi on the temperature and the velocity distributions are then exhibited. It is confirmed that the nanoparticle volume fraction phi plays a key role for improving the heat and mass transfer characteristics of the fluids. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1086 / 1092

页数：7

共 45 条

[1] Effects of inclination angle on natural convection in enclosures filled with Cu-water nanofluid [J].

Abu-Nada, Eiyad ;

Oztop, Hakan F. .

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2009, 30 (04) :669-678

[2] Application of nanofluids for heat transfer enhancement of separated flows encountered in a backward facing step [J].

Abu-Nada, Elyad .

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2008, 29 (01) :242-249

[3]

[Anonymous], 2007, NANOFLUIDS SCI TECHN

[4] THEORY OF FULLY-DEVELOPED, COMBINED CONVECTION INCLUDING FLOW REVERSAL [J].

AUNG, W ;

WORKU, G .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1986, 108 (02) :485-488

[5] Flow and heat transfer over a rotating porous disk in a nanofluid [J].

Bachok, Norfifah ;

Ishak, Anuar ;

Pop, Ioan .

PHYSICA B-CONDENSED MATTER, 2011, 406 (09) :1767-1772

[6] Dual mixed convection flows in a vertical channel [J].

Barletta, A ;

Magyari, E ;

Keller, B .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2005, 48 (23-24) :4835-4845

[7] Analysis of combined forced and free flow in a vertical channel with viscous dissipation and isothermal-isoflux boundary conditions [J].

Barletta, A .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1999, 121 (02) :349-356

[8] COMBINED NATURAL-CONVECTION AND FORCED-CONVECTION BETWEEN PARALLEL VERTICAL WALLS [J].

BECKETT, PM .

SIAM JOURNAL ON APPLIED MATHEMATICS, 1980, 39 (02) :372-384

[9] COMBINED NATURAL AND FORCED-CONVECTION BETWEEN PARALLEL WALLS - DEVELOPING FLOW AT HIGHER RAYLEIGH NUMBERS [J].

BECKETT, PM ;

FRIEND, IE .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1984, 27 (04) :611-621

[10] Convective transport in nanofluids [J].

Buongiorno, J .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2006, 128 (03) :240-250

← 1 2 3 4 5 →