391 



08 

 6 



(a) 

 Clark Y 11.7 

 a = rad 



of positions of minimum pressure, in each case 

 indicated in the figures. The bottom and the 

 second (at a = 0, 0.052 rad) groups show the 

 positions of inception or front edges of cavitation 

 zones and refer to the scales written on the right- 

 hand side , and the other groups show rear edges of 

 cavitation zones and refer to the scales written on 

 the left-hand side. Open symbols correspond to 

 traveling cavitations and closed and semi-closed 



(b) 

 Clark Y 11.7 

 2 = 0.052 rad 



FIGURE 10 (a) (b) . Spanwise variations of 

 position of inception and front and rear 

 edges of cavitation zones for the Clark Y 

 11.7 profile. 



08 10 

 V/h 



8 1.0 



FIGURE 10 (c) (d) . Spanwise variations of 

 position of inception and front and rear 

 edges of cavitation zones for the Clark Y 

 11.7 profile. 



(c) 

 Clark Y 11.7 

 a = 0.105 rad 



(d) 

 Clark Y 11.7 

 a = 0.157 rad 



1.0 



05 



A 



A 



e e 



A A 



4 a 



!= 0,052 rad 



A 



a 



05 



Q2 



04 



06 



8 1.0 



y/h 



(b) 



08 



0.052 rad 



0.15 



o.:o 



0.05 



FIGURE 11. Spanwise variation of the 

 position of inception and the front and rear 

 edges of cavitation zones for the 0„ profile. 



