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ISSN Online: 2377-424X

ISBN Print: 0-89116-909-1

International Heat Transfer Conference 9
August, 19-24, 1990 , Jerusalem, Israel

COMBINED NATURAL CONVECTION AND RADIATION IN PARTITIONED ENCLOSURES

Get access (open in a dialog) DOI: 10.1615/IHTC9.4110
pages 445-450

Sinopsis

Natural convection of a gray, absorbing, emitting and isotropically scattering fluid in a partially divided square enclosure is studied numerically. The coupled momentum, energy and radiative transfer equations are solved by an iterative procedure, using the SIMPLER algorithm for flow and temperature calculations and the discrete ordinates method for radiation transport. The effects of the optical thickness of the radiating fluid and the baffle thermal conductivity on the temperature and flow fields are studied for centrally located and offset baffle configurations. In general, radiation increases the circulating flow rate and plays a dominant role in heat transfer. Radiant heat exchange between the baffles and the side walls strongly influences the baffle temperature distributions and the flow behavior near the baffles.