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ISSN Online: 2377-424X

ISBN Print: 0-89116-559-2

International Heat Transfer Conference 8
August, 17-22, 1986, San Francisco, USA

MIXED CONVECTION IN THE THERMAL PLUME ABOVE A HORIZONTAL LINE SOURCE OF HEAT IN A POROUS MEDIUM OF INFINITE EXTENT

Get access (open in a dialog) DOI: 10.1615/IHTC8.3870
pages 2671-2675

Sinopsis

An analysis is performed to study the effects of transverse thermal dispersion and inertia on the mixed convection boundary layer flow in the thermal plume above a horizontal line source in a porous medium of infinite extent. A local similarity solution is obtained where the dependent and independent variables are scaled to a mixed convection parameter applicable at both the free-and forced-convection limits. The solution is valid from the free-convection dominated region near the heat source to that of the forced-convection dominated region away from the source. Numerical computations of the temperature and vertical velocity profiles were carried out for the cases of air, water and silicon oil for a wide range of the mixed convection parameter. The effects of the transverse thermal dispersion and inertia on the heat transfer and fluid flow char-acteristics from free- to forced-convection limits are illustrated.