NATURAL-CONVECTION OF MICROPOLAR FLUIDS IN AN INCLINED RECTANGULAR ENCLOSURE

This paper presents numerical results for buoyancy driven flow and hea t transfer in a two-dimensional, micropolar fluid filled enclosure. A rectangular enclosure is heated and cooled on the end walls while the other two sides are insulated. Parametric heat transfer calculations h ave been performed by the cubic spline collocation method. A series of Rayleigh numbers and aspect ratios of the enclosure are presented. Th e effect of inclination and various material parameters on the rate of heat transfer was discussed. The maximum heat transfer has been found for an inclined angle close to 41-degrees at aspect ratio 1.75 to 0.7 5. The critical aspect ratio varies with the vortex viscosity.