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Proceedings of CHT-08 ICHMT International Symposium on Advances in Computational Heat Transfer
May, 11-16, 2008, Marrakesh, Morocco

DOI: 10.1615/ICHMT.2008.CHT


ISBN Print: 978-1-56700-253-9

ISSN: 2578-5486

COMPUTATION OF COMBINED MIXED CONVECTION AND SURFACE RADIATION IN A PARTITIONED VENTILATED RECTANGULAR CAVITY

page 10
DOI: 10.1615/ICHMT.2008.CHT.1510
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摘要

The present paper reports numerical results of mixed convection and surface radiation within a horizontal ventilated cavity heated from below and provided with an adiabatic thin partition on the heated surface. In this analysis, the forced flow enters the cavity through an opening located in lower part of the cold vertical left wall and leaves it from an opening located in the upper part of the opposite adiabatic wall. Air, a radiatively transparent medium, is considered to be the cooling fluid. The effect of the governing parameters, which are the Reynolds number, 200 ≤ Re ≤ 5000, the baffle position from the inlet, 0.25 ≤ Lb ≤ 1.75, and the emissivity of the walls, 0 ≤ ε ≤ 0.85, on the fluid flow and heat transfer characteristics is studied in detail. The ratio, QE/QL, of the heat quantities leaving the cavity through the exit, QE, and through the vertical cold left side, QL, is also presented versus the above controlling parameters.

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