Heatline visualization of natural convection in a porous cavity occupied by a fluid with temperature-dependent viscosity

Hooman, K. and Gurgenci, H. (2008) Heatline visualization of natural convection in a porous cavity occupied by a fluid with temperature-dependent viscosity. Journal of Heat Transfer, 130 1: 1-6. doi:10.1115/1.2780179


Author Hooman, K.
Gurgenci, H.
Title Heatline visualization of natural convection in a porous cavity occupied by a fluid with temperature-dependent viscosity
Journal name Journal of Heat Transfer   Check publisher's open access policy
ISSN 0022-1481
1528-8943
Publication date 2008-01-01
Year available 2008
Sub-type Article (original research)
DOI 10.1115/1.2780179
Volume 130
Issue 1
Start page 1
End page 6
Total pages 5
Place of publication New York, USA
Publisher ASME International
Language eng
Subject C1
0913 Mechanical Engineering
970102 Expanding Knowledge in the Physical Sciences
Abstract Temperature-dependent viscosity effect in buoyancy driven flow of a gas or a liquid in an enclosure filled with a porous medium is studied numerically based on the general model of momentum transfer in a porous medium. The exponential form of viscosity-temperature relation is applied to examine three cases of viscosity-temperature relation: constant, decreasing, and increasing. Application of arithmetic and harmonic mean values of the viscosity is also investigated for their ability to represent the Nusselt number versus the effective Rayleigh number. Heat lines are illustrated for a more comprehensive investigation of the problem.
Keyword Natural convection
Forced-convection
Temperature-dependent viscosity
Heat lines
Q-Index Code C1
Q-Index Status Confirmed Code

 
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Created: Thu, 09 Apr 2009, 19:17:28 EST by Rose Clements on behalf of School of Mechanical and Mining Engineering