Response of Propulsors to Turbulence 



\ M JUt/ 



Fig. 5 - Functions fj, (2, and fj 



according to Eqs. (16) :-,i 



These integrals, which can readily be evaluated, are plotted in Fig. 5. In terms of 

 these functions the mean square of the fluctuating thrust force is given by 



<T'> ---W (^fl+f2 + f3) g(M/RA) 



(17) 



A fluctuating thrust coefficient can now be obtained by dividing Eq. (17) by 



(pu277RV2)2: 



<'-'> r, Wl U, 



[cfj + f^ + fj] g(M/RA) . 



301 



