Prediction of Acoustic Energy Radiated by Bubble Produced by Raindrops

Table 1

Testing conditions for bubbles produced by raindrops.

No.	D (mm)	Drop type	Number of tests	Bubble type and probability
1	0.7	Minuscule	50	No bubble
2	0.9	Small	62	Type I (100%)
3	1.5	Midsize	50	No bubble
4	2.5	Large	92	Type II (28.3%), type III (34.8%)
5	3.9	Large	94	Type II (57.4%), type III (21.2%)

No. is the serial number. D is the raindrop diameter.