483 



Cavily orea Icm^) 



50 r P 131 Pa /scale unit 



FIGURE 20. Cavity area and generated pres- 



25 30 



1 (miiiisecondsi sure. Oscillation period 7. 



Cavity area {cm^) 

 70 



FIGURE 21. Cavity area and gen- 

 erated pressure. Oscillation 

 period 12. 



^**Va/^ 



35 40 



t (milliseconds) 



Cavity area (cm^) 



p 131 Pa/scale unit 



50 scale units 



"i^VaN^rm^i^ii^^r*^ 



5 10 t5 ,„ 20 25 30 35 



15 20 



FIGURE 22. Cavity area and generated pressure. 

 KmiiiisKonijs) Oscillation period 13. 



