458 



12.0 



10.0 



e 8.0 



6.0 



1.0, 



0.60 



0.30 1.0 

 Cavitation Number 



1.20 



FIGURE 8. Derived relationship between Se and cavita- 

 tion number for NACA 0015 foil, a = 4 deg. 



-1.0 



Cp 

 -0.5 



0.5 



FIGURE 9. Comparison of NACA 0015 foil calculated 

 cavity shape and Cp distribution with experiments at 

 a = 4 deg. 



FIGURE 10. Illustration of MDD 

 (Mean Depth of Deformation) data 

 from NACA 0015 foil test [pure 

 aluminum (H2102-2) , a = 4 deg. , 

 V = 35 m/s 1 . 



4. 



1.0. 



0.8 



0.6 

 OA 



0,2 

 



0.{ 



0.5 



0.2 I 







o-= 1,119 



30 MIN 



EfJD OF Cavity 

 Standard 

 Deviation 



0. 



20 iJO 60 80 IOC 



iJO 60 80 100 



I I I I I 



<j= 0.958 



1 



20 



0. 

 0.6 



0.4 



0.2 







1.0 

 0.8 



0.6 

 0.4 



0.2 







20 40 60 80 100 

 L,E. Chord Position (%Chord) t.E. 



(a) C = 50 MM 



■A|:(:g:f^2 — i — i — 1_&« — I 



40 60 80 100 



I I I ' I I ' 



a=0.871 





20 '^40 50 80 100 



I 1 I 



o-= 0,717 



I I r I " r" 



! 



20 



-» 1 r- f I » I I 1 



o-= 0.555 



40 50 80 100 



1- 



20 40 60 80 100 

 L.E, Chord Position (7Xhord) j.E. 



(b) C = 30 MM 



