View Single Post
Old 01-27-2016, 04:16 PM   #114
BandB
Guru
 
BandB's Avatar
 
City: Fort Lauderdale. Florida, USA
Join Date: Jan 2014
Posts: 21,449
Quote:
Originally Posted by stubones99 View Post

the formula to compute the flood rate is as follows:
gpm = 5.67 x diameter of the penetration squared multiplied by the square root of the depth below the waterline.
So, 5.67 x 4 x 4 x 3.16 or so.

287 gpm

16,680 per hour. The bethanddevans chart shows 1,012 per minute. So this formula is considerably less if my math is correct.

Is it 5.67 x (diameter squared) or (5.67 x diameter) squared.

I assumed the former. The second interpretation would give 1,625 gpm so much higher.
BandB is offline   Reply With Quote