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ISSN Online: 2377-424X

ISBN Print: 0-89116-299-2

International Heat Transfer Conference 7
September, 6-10, 1982, Munich, Germany

CONVECTIVE INSTABILITY AND FINITE AMPLITUDE CONVECTION IN THE THERMAL ENTRANCE REGION OF HORIZONTAL RECTANGULAR CHANNELS HEATED FROM BELOW

Get access (open in a dialog) DOI: 10.1615/IHTC7.3100
pages 189-194

Résumé

This paper demonstrates the applicability of the numerical solution of the complete Navier-Stokes and energy equations for convective instability and finite amplitude convection in the thermal entrance region of horizontal rectangular channels heated from below without using the conventional linear stability theory. The solution with large Prandtl number assumption yields flow and heat transfer results for the classical Ray-leigh-Benard problem with fully developed laminar main flow for aspect ratio (width/height) γ = 10. The case with maximum density effect is also studied. This study clarifies the morphology of the developing longitudinal vortices.