APPENDIX A 

 CAVITY BOUNDARY CONDITION 



From the Bernoulli equation with respect to coordinates fixed on the blade 



2 P 2 



where P and q are the pressure and the speed of a fluid particle relative to the 

 blade. Thus 



2 2 

 P - P + < 1- 1 



2~ ~ 2" = (q +" q - ) (q + +q - ) 2 



P P 



= GV £ 



Therefore 



AP 2G V £ 



1 Tr 2 V V 



2 P V s S S 



Again from the Bernoulli equation 



T-r-i 1 ^ 1 *! 1 



m G 

 2V U T 2V f U T , U T 



s s 



This is Equation (25) or (26) 



79 



(49) 



(50) 



p = TF -v-lv-*^' (51) 



