BLADE CAVITY 



BLADE 

 ^ 



MEAN STEADY UPSTREAM 

 VELOCITY 



Figure 37a - Physical Plane 



Z-PLANE 



UPSTREAM "\ 

 VELOCITY 



CAVITY 



Z 



BLADE 



u (x) = g e"' ( g is a constant of the solution) 



MEAN STEADY UPSTREAM 

 VELOCITY 



11 (8,0) 



DOWNSTREAM VELOCITY ~v 



v = 



+ - i>0' T 2 + t 5 



JCJt 



N + N e 



Figure 37b - Mathematical Plane (with linearized boundary conditions) 



Figure 37 - Representation of Unsteady Cavitating Flow Through a Cascade 



of Inducer Blades Together with Linearized Boundary Conditions 



(Kim and Acosta 1975) 



76 



