EXPERIMENTAL INVESTIGATIONS OF FLUID-FLOW AND HEAT-TRANSFER CHARACTERISTICS OF A SLOT JET IMPINGING ON A RECTANGULAR CYLINDER

Experimental investigations on flow characteristics and averge heat tr ansfer due to slot jet impinging on a rectangular cylinder have been c arried out for different non-dimensional parameters. The minimum value of the pressure coefficient is found on the lower face of the rectang ular cylinder at an angle of inclination of 15-degrees. Drag coefficie nt calculated from the measured pressure distribution is found to be m aximum within a range of breadth/width ratio of 0.67 to 1.5 of rectang ular cylinders. The maximum value of heat transfer rate is obtained at the angle of inclination of 15-degrees of the cylinder to the jet axi s. An increasing trend of heat transfer rate is observed with higher R eynolds numbers. A correlation of average Nusselt number is presented for rectangular cylinders.