19 



■1+ °- 8 



0.6 

















Xw 







Flat Plate 









k \ \\ 









.H =I40 

 /-1. 35 

 ' /\- 30 

 //1. 25 



/ 1 .20 













y^ 

















































Figure 9 - The Variation of Pressure-Gradient Factor (— ) H o +1 W ith 

 H for Different Values of H Xy o' 



Since from Equation [9] 



y = Vl~H] 



y may be expressed as a function of H using [15]> 



and 



V. = 



. r H-i i^ 



- U(H+1)J 



H -1 



■W 1 ) 



P+l] 



[42] 



[^3 



The variation of \y-) ° with H and H Q is shown in Figure 9- Since this fac- 

 tor which represents the effect of pressure gradient on the skin friction di- 

 minishes asymptotically towards zero, with increasing H, it can only describe 

 flow conditions approaching separation and not conditions right at the separa- 

 tion point where the wall shearing stress is zero. 



