THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Fatih Selimefendigil

,

Hakan F. Öztop

EFFECTS OF AN ADIABATIC FIN ON THE MIXED CONVECTION HEAT TRANSFER IN A SQUARE CAVITY WITH TWO VENTILATION PORTS

ABSTRACT
In this study, a square cavity with two ventilation ports in the presence of an adi-abatic fin of different lengths placed on the walls of the cavity is numerically analyzed for the mixed convection case for a range of Richardson numbers (Ri=0.1,1, 10, 100) and at Reynolds number of 300. The effect of the fin height, placement of the fin on each of the four walls of the cavity and Richardson number on the heat transfer and fluid flow characteristics is numerically analyzed. The results are presented in terms of streamlines, isotherm plots and averaged Nusselt number plots. It is observed that for the convection dominated case, fin length and its position on the one of the four walls of the cavity do not alter the thermal performance whereas when the buoyancy effects become important thermal performance increases for high fin length.
KEYWORDS
mixed convection, adiabatic fin, thermal performance
PAPER SUBMITTED: 2012-06-08
PAPER REVISED: 2013-04-04
PAPER ACCEPTED: 2013-04-24
PUBLISHED ONLINE: 2013-05-05
DOI REFERENCE: https://doi.org/10.2298/TSCI120608047S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2014, VOLUME 18, ISSUE Issue 2, PAGES [377 - 389]
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Effects of an adiabatic fin on the mixed convection heat transfer in a square cavity with two ventilation ports

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