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Tainter Gate on an Ogee Spillway

Tainter Gate on an Ogee Spillway

Tainter Gate on an Ogee Spillway

(OP)
I'm trying to calulate flow for a tainter gate on an Ogee spillway. To be more specific, for the transition zone from overflow over the ogee to orifice flow. HEC-RAS uses an iterative process for Head/gate opening = 1 to 1.25 to evaluate this transition zone. I found this in the hydraulic reference manual but no further information on the basis or the process that is used. I need a hydraulics reference manual for the hydraulics reference manual. Can anyone point me to this information?

RE: Tainter Gate on an Ogee Spillway

The Corps has a nice publication with some gate calcs.
EM 1110-2-1603 Hydraulic Design of Spillways

I know I have some USBR with radial gate information (I think the USBR posts more technical in depth info).  I know there is information in their Small Canal Structures.
http://www.usbr.gov/pmts/hydraulics_lab/pubs/manuals_monographs.html
They have a dos program radgate.  A windows version has been underdevelopment for some time.  I sorta remember hearing about it 6 years ago.
A lot of their info is for maintaining upstream levels using automatic controls.


RE: Tainter Gate on an Ogee Spillway

(OP)
Thanks for all the assistance!!!

I found a reference in the appendix of the Corps manual to define the upper nappe which should tell me when the water surface truely impacts the gate.

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