Determine the convection heat transfer coefficient, thermal resistance for convection, and the convection heat transfer rate that are associated with air at atmospheric pressure in cross flow over a cylinder of diameter D =100 mm and length L = 2 m. The cylinder temperature is T, = 70°C while the air velocity and temperature areV = 3 m/s and T = 20°C, respectively. Plot the convection heat transfer coefficient and the heat transfer rate from the cylinder over the range 0.05 m <D<0.5 m.

Fig: 1