X 

 H 



z 



UJ 



O 



UJ 



o 



3 



o 



UJ 



MOTION OF THE GAS SPHERE 



REDUCED TIME t' 



DEPTHS 

 BELOW 

 SURFACE 

 (FEET) 



40 



20 



60 



BQ 



OC 



2200 LB 



300 LB 



30 LB 



10 LB 



TIME SCALES (sec) 



Fig. 8.7 Calculated pulsation and displacement of a gas sphere under gravity. 



