Experimental investigation of opposing flow turbulent mixed convection heat transfer in inclined flat channel with one-side heating

摘要

An experimental investigation of heat transfer in an inclined flat channel with one-side heating (the upper wall is heated) for turbulent mixed convection opposing flow conditions have been performed in the region of Re = 4·10{sup}3 - 4·10{sup}4, Gr{sub}q = 1.7·10{sup}8 - 1.4·10{sup}10. With changing the power index of Re in the buoyancy parameter Bo = Gr{sub}q/Re{sup}m Pr{sup}n within the limits of m = 3.425-2.5, the best correlation of data for different pressure of air was found to be at m = 2.5. It is demonstrated that the heat transfer rate in inclined flat channel (Φ = 60°) is close to the heat transfer rate in vertical flat channel for the same boundary conditions.