A numerical study of mixed convection in a horizontal channel with a discrete heat source in an open cavity

Aminossadati, Saiied M. and Ghasemi, Behzad (2009) A numerical study of mixed convection in a horizontal channel with a discrete heat source in an open cavity. European Journal of Mechanics B - Fluids, 28 4: 590-598.


Author Aminossadati, Saiied M.
Ghasemi, Behzad
Title A numerical study of mixed convection in a horizontal channel with a discrete heat source in an open cavity
Journal name European Journal of Mechanics B - Fluids   Check publisher's open access policy
ISSN 0997-7546
1873-7390
Publication date 2009-07
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.euromechflu.2009.01.001
Volume 28
Issue 4
Start page 590
End page 598
Total pages 9
Editor F.Dias
G.J.F. Van Heijst
Place of publication Issy les Moulineaux, France
Publisher Elsevier
Collection year 2010
Language eng
Subject 091502 Computational Heat Transfer
850603 Energy Systems Analysis
Abstract This article aims to numerically investigate mixed convection heat transfer in a two-dimensional horizontal channel with an open cavity. A discrete heat source is considered to be located on one of the walls of the cavity. Three different heating modes are considered which relate to the location of the heat source on three different walls (left, right and bottom) of the cavity. The analysis is carried out for a range of Richardson numbers and cavity aspect ratios. The results show that there are noticeable differences among the three heating modes. When the heat source is located on the right wall, the cavity with an aspect ratio of two has the highest heat transfer rate compared to other cavity heating modes. Moreover, when the heat source is located on the bottom wall, the flow field in the cavity with an aspect ratio of two experiences a fluctuating behaviour for Richardson number of 10. The results also show that at a fixed value of Richardson number, all three different heating modes show noticeable improvements in the heat transfer mechanism as the cavity aspect ratio increases.
Keyword Mixed convection
Natural-convection
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 21 January 2009.

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Mechanical & Mining Engineering Publications
 
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Created: Thu, 03 Sep 2009, 07:56:15 EST by Mr Andrew Martlew on behalf of School of Mechanical and Mining Engineering