Natural Convection Heat Transfer in Inclined Rectangular Enclosure : Effect of Body in Enclosure

Abstract

The effects of the inner body on the heat transfer phenomena in an inclined rectangular enclosure have been studied numerically. The calculations were carried out for P_r=10 and G_rw=5×10²-5×10⁵ (Ra_w=5×10³-5×10⁶). The aspect ratio of the enclosure H/W was 2 throughout the study. The size (W_i/W, H_i/H) and the aspect ratio H_i/W_i of the nonconducting inner body were changed parametrically. The flow and temperature fields were shown in detail and the heat transfer coefficient was discussed from the results. It is clarified here that the average Nusselt number (N_uw)^^^- largely depends on the size of the inner body in the case where the inclination angle γ is larger than 0°, and there are instances where N_uw for the enclosure with the inner body is larger than that for the enclosure without inner body.