F • CONVECTIVE HEAT TRANSFER IN GASES 



iteration beyond Crocco for enthalpy, even for constant Prandtl number, 

 in order to attain the accuracy desired; this is illustrated in Fig. F,5f and 

 F,5g where the exact recovery and Reynolds analogy factor are plotted 

 as functions of Mach number for both a true shear distribution, corre- 



0.86 



0.85 



0.84 



0.83 



0.82 



0.81 



2 4 6 8 10 12 14 



Mach number Me 



16 



Fig. F,5f. Effect of shear distribution on recovery factor for Pr = 0.715. 

 0.82 



0.81 



0.80 = 



0.79 



0.78 



0.77 



4 6 8 10 12 



Mach number Me 



14 



16 



Fig. F,5g. Effect of shear distribution on Reynolds analogy factor for Pr = 0.715. 



spending to a constant Prandtl number of 0.715 and T^ = 400°R, and 

 the Blasius shear distribution. Fig. F,5h shows typical shear and Prandtl 

 number distributions for a complete calculation. 



Fig. F,5i shows the local heat transfer coefficient (multiplied by -y/Re) 

 for a laminar boundary layer on a flat plate at zero angle of attack in free 



(354 > 



