Convection of Cu-water nanofluid in a vented T-shaped cavity in the presence of magnetic field

Kasaeipoor, A., Ghasemi, B. and Aminossadati, S. M. (2015) Convection of Cu-water nanofluid in a vented T-shaped cavity in the presence of magnetic field. International Journal of Thermal Sciences, 94 50-60. doi:10.1016/j.ijthermalsci.2015.02.014


Author Kasaeipoor, A.
Ghasemi, B.
Aminossadati, S. M.
Title Convection of Cu-water nanofluid in a vented T-shaped cavity in the presence of magnetic field
Journal name International Journal of Thermal Sciences   Check publisher's open access policy
ISSN 1290-0729
Publication date 2015-08-01
Year available 2015
Sub-type Article (original research)
DOI 10.1016/j.ijthermalsci.2015.02.014
Volume 94
Start page 50
End page 60
Total pages 11
Place of publication Cedex, France
Publisher Elsevier Masson
Collection year 2016
Language eng
Abstract This paper presents the results of a numerical study on the mixed convection of Cu-water nanofluid in a T-shaped cavity in the presence of a uniform magnetic field. Some sections of the bottom walls of the cavity are heated at a constant temperature and the other walls are thermally insulated. The nanofluid at a relatively low temperature enters from the bottom and exits from the top of the cavity. The governing equations are solved numerically with a finite volume approach using the SIMPLE algorithm. The effects of parameters such as Reynolds number (10 ≤ Re ≤ 400), Richardson number (0.01 ≤ Ri ≤ 10), Hartmann number (0 ≤ Ha ≤ 80), solid volume fraction (0 ≤ φ ≤ 0.06), and cavity aspect ratio (0.1 ≤ AR ≤ 0.4) on the fluid flow and the thermal performance of the cavity are studied. The results indicate that the presence of nanoparticles enhances the heat transfer except at Re = 100 and Ha < 10 as well as Re = 400 and Ha < 60, where pure water has a slightly higher heat transfer rate compared to the nanofluid. The influence of nanofluid on the heat transfer enhancement increases as AR increases. For Ri = 0.01 and 1, the maximum heat transfer rate is obtained at AR = 0.4; however, for Ri = 10, the maximum heat transfer rate occurs at AR = 0.1.
Keyword Numerical study
Mixed convection
Nanofluid
Magnetic effect
T-shaped cavity
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2016 Collection
 
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Created: Tue, 24 Mar 2015, 02:28:01 EST by Dr Saiied Aminossadati on behalf of School of Mechanical and Mining Engineering