F • CONVECTIVE HEAT TRANSFER IN GASES 



cone is f -s/S times the mean coefficient for the plate based on the same 

 slant area. It must be mentioned also that the coefficients for the cone 

 are based upon the flow condition just outside the boundary layer of the 

 cone and not in front of the attached shock wave. 



0.82 



0.81 



Sir 



0.80 



0.79 



0.78 



0.77 



2 4 6 8 10 12 14 



Free stream Mach number Me 



Fig. F,6c. Reynolds analogy factor for laminar boundary layers 

 on insulated cones in free flight, r^ = 400°R. 



0.8 



0.7 



16 



^ 0.6 



oo 



0.5 



0.4 



4 6 8 10 12 



Local Mach number Me 



14 



16 



Fig. F,6d. Local heat transfer coefficient for laminar boundary layers on 

 insulated cones in a wind tunnel at various supply temperatures. 



Because of engineering interest in cones, the local heat transfer coef- 

 ficient, recovery factor, and Reynolds analogy factor are plotted in Fig. 

 F,6a, F,6b, and F,6c, respectively, for insulated cones at zero angle of 

 attack in free flight. 



With experimental work in wind tunnels. Fig. F,5s, F,5t, F,5u, and 

 F,5v can be used directly for recovery factor and Reynolds analogy factor 



(364 > 



