jcirish
Civil/Environmental
- Feb 11, 2016
- 19
what is MAX difference is start and stop elevations for a bell siphon using water at sea level?
I would think that Bernoulli equation would rule here. And you get about 10 meters or 33 ft.
Civil engr texts limit it further to 20 ft minus 1 ft for every 1k in elevation.... to account for lower air pressure at high altitude.
Confusion is an article from RE Garrett, Cal Davis prof in 1991.
He states the difference is from a few millimeters to ALMOST to bottom of RESERVOIR. That would SEEM to mean more than 20 ft.
I know stop of siphon is air vent elevation and top height is starting water level.
From principles of siphons article, 1991 The magnitude of difference twen the max n mini levels can be small or large, ranging from a few mm to ALMOST the FULL depth of the reservoir.
Any thoughts????? thanx, God bless. john
I would think that Bernoulli equation would rule here. And you get about 10 meters or 33 ft.
Civil engr texts limit it further to 20 ft minus 1 ft for every 1k in elevation.... to account for lower air pressure at high altitude.
Confusion is an article from RE Garrett, Cal Davis prof in 1991.
He states the difference is from a few millimeters to ALMOST to bottom of RESERVOIR. That would SEEM to mean more than 20 ft.
I know stop of siphon is air vent elevation and top height is starting water level.
From principles of siphons article, 1991 The magnitude of difference twen the max n mini levels can be small or large, ranging from a few mm to ALMOST the FULL depth of the reservoir.
Any thoughts????? thanx, God bless. john
