Outlet Control with Flap/floodgate
Outlet Control with Flap/floodgate
(OP)
I am trying to find a good reference on how to deal with a culvert with Outlet control (at 100 year flood stage) that includes a flood gate (flap valve). I have the standard equations and could add in the head loss from the gate (manufacturer information relating with a Q - hl relationship) into that equation as an additional head subtracted from the inlet head but I can't find a reference which I can point to showing that is legitimate.
Thanks, Tim
Thanks, Tim





RE: Outlet Control with Flap/floodgate
RE: Outlet Control with Flap/floodgate
I am not sure how to approach the situation especially if the outlet is submerged. There are forces acting against the pipe flow inaddition to the gate. I have tried to look at the head required to move the gate but not sure if it is correct. Please post what you find.
RE: Outlet Control with Flap/floodgate
RE: Outlet Control with Flap/floodgate
RE: Outlet Control with Flap/floodgate
The general link is http://chl.wes.army.mil/library/publications/hydraulic_design_criteria
And the specific part on Gates and Valves is:
http://chl.wes.army.mil/library/publications/hydraulic_design_criteria/300.pdf
Check out section #340 for flap gates.