Modeling Tide Gate with HydroCAD Version 9
Modeling Tide Gate with HydroCAD Version 9
(OP)
I read from "HydroCAD tips" that in HydroCAD version 9.0 and below, gates can sometimes be modeled using "pump" outlet. I am looking for help on how to setup data in the pump window so the pump understands I am only modeling a gate and not a pump per se. What I have is a 48-inches RCP pipe fitted with a tideflex valve at the end and the tidlex closes at high tide and opens at low tide to discharge roadway drainage flows. Any help is highly appreciated. Thanks in advance for your help.





RE: Modeling Tide Gate with HydroCAD Version 9
In your case, a culvert outlet will give the behavior you're looking for. You don't need to do anything else.
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: Modeling Tide Gate with HydroCAD Version 9
1- Pond XXX Qout>Qin may require Finer Routing or smaller dt
2- Pond XXX Oscillations may require Finer Routing or smaller dt
3- Downstream Pond exceeded upstream Pond by XXX.
The online help suggests that all three warnings may be resolved by increasing the finer routing value, reducing the time increment, or increase the available storage. I did set my finer routing to 3, reduce my time increament to 0.01 hrs and have no catch basin flood elevation exceedance. I am using the SBUH and the Dyn-Stor-Ind reach routing method to route flows through connected storm sewers which eventually discharge to a tidal creek. Any suggestion on how to overcome these warning messages? Thanks again for your support.
RE: Modeling Tide Gate with HydroCAD Version 9
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: Modeling Tide Gate with HydroCAD Version 9
RE: Modeling Tide Gate with HydroCAD Version 9
You appear to have unrouted grate overflows on most of the CB's. These must be routed somewhere or the overflow will "disappear" from the model.
I believe the remaining reverse-head messages are the expected result of the tidal tailwater. You can disconnect the tailwater link to see how the system behaves with free discharge.
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: Modeling Tide Gate with HydroCAD Version 9
RE: Modeling Tide Gate with HydroCAD Version 9
Peter Smart
HydroCAD Software
www.hydrocad.net