Flow over porous blocks in a square cavity: Influence of heat flux and porosity on heat transfer rates

被引：15

作者：

Shuja, S. Z. ^{[1
]}

Yilbas, B. S. ^{[1
]}

Kassas, M. ^{[2
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Mech Engn, Dhahran 31261, Saudi Arabia

[2] King Fahd Univ Petr & Minerals, Dept Elect Engn, Dhahran 31261, Saudi Arabia

来源：

INTERNATIONAL JOURNAL OF THERMAL SCIENCES | 2009年 / 48卷 / 08期

关键词：

Porous; Blocks; Cavity; Flow; Heat transfer; NATURAL-CONVECTION; CARBON-FOAM; PERFORMANCE; CHANNEL; FIN;

D O I：

10.1016/j.ijthermalsci.2008.12.010

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The heat transfer due to the flow over two porous blocks situated in a square cavity is investigated and the effects of heat flux and the porosity on the flow structure and the heat transfer in the cavity are examined. In the simulations, four heat fluxes and three porosities are accommodated while air is used as the working fluid. The flow conditions at the cavity inlet are kept the same for all the cases simulated. The equilibrium equations pertinent to the flow over porous blocks in the cavity are used to predict the velocity and temperature fields. It is found that increasing porosity of the blocks modifies the flow field in the cavity, which is more pronounced as the heat flux increases. The Nusselt number enhances with the increasing porosity and heat flux. (C) 2009 Elsevier Masson SAS. All rights reserved.

引用

页码：1564 / 1573

页数：10

共 50 条

[31] Convective heat transfer over a heated square porous cylinder in a channel
Wu, Horng-Wen
Wang, Ren-Hung
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2010, 53 (9-10) : 1927 - 1937
[32] Analysis of fluid flow and heat transfer in a channel with staggered porous blocks
Li, H. Y.
Leong, K. C.
Jin, L. W.
Chai, J. C.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2010, 49 (06) : 950 - 962
[33] Local thermal nonequilibrium perspective of heat transfer and fluid flow in a slender anisotropic porous cavity due to lateral uniform heat flux
Chandra, Harish
Bera, P.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 2024,
[34] Numerical study for forced MHD convection heat transfer of a nanofluid in a square cavity with a cylinder of constant heat flux
Amin Hassanpour
A. A. Ranjbar
M. Sheikholeslami
The European Physical Journal Plus, 133
[35] Numerical study for forced MHD convection heat transfer of a nanofluid in a square cavity with a cylinder of constant heat flux
Hassanpour, Amin
Ranjbar, A. A.
Sheikholeslami, M.
EUROPEAN PHYSICAL JOURNAL PLUS, 2018, 133 (02):
[36] HEAT TRANSFER OVER A STRETCHING POROUS SHEET SUBJECTED TO POWER LAW HEAT FLUX IN PRESENCE OF HEAT SOURCE
Kumar, Hitesh
THERMAL SCIENCE, 2011, 15 : S187 - S194
[37] Flow with radiative heat transfer and viscous dissipation over a stretching surface through a porous medium in presence of variable heat flux
Tak, S.S.
Kumar, H.
Modelling, Measurement and Control B, 2008, 77 (3-4): : 71 - 80
[38] Fluid flow and heat transfer in microchannel with and without porous medium under constant heat flux
Lori, Mohammad Shamsoddini
SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2022, 47 (02):
[39] Fluid flow and heat transfer in microchannel with and without porous medium under constant heat flux
Mohammad Shamsoddini Lori
Sādhanā, 2022, 47
[40] MERLOT: a model for flow and heat transfer through porous media for high heat flux applications
Raffray, AR
Pulsifer, JE
FUSION ENGINEERING AND DESIGN, 2003, 65 (01) : 57 - 76

← 1 2 3 4 5 →