Multiple Basin Outlets
Multiple Basin Outlets
(OP)
Scenario I'm dealing with:
I have a wet sed basin with an outlet control structure. the OCS has an internal weir wall, overflow grate, and discharges via 36" pipe. The discharge out of the 36" pipe is causing some erosion concerns on an adjacent golf course. The city is wanting another discharge pipe routed underground through the golf course to remove some overland flow. How would you model that? I currently have the internal weir and overflow grate routed to the 36" pipe. How would you also model the additional outlet pipe that will connect to the OCS?
I have tried modeling the pond with the weir and overflow grate as the primary outlets routed to a separate pond node with the 36" and added outlet pipe as primary and secondary outlets. This is causing some invalid results. Would I need to use a Link node somehow?
Thanks!
Joey
I have a wet sed basin with an outlet control structure. the OCS has an internal weir wall, overflow grate, and discharges via 36" pipe. The discharge out of the 36" pipe is causing some erosion concerns on an adjacent golf course. The city is wanting another discharge pipe routed underground through the golf course to remove some overland flow. How would you model that? I currently have the internal weir and overflow grate routed to the 36" pipe. How would you also model the additional outlet pipe that will connect to the OCS?
I have tried modeling the pond with the weir and overflow grate as the primary outlets routed to a separate pond node with the 36" and added outlet pipe as primary and secondary outlets. This is causing some invalid results. Would I need to use a Link node somehow?
Thanks!
Joey
RE: Multiple Basin Outlets
Since your are splitting the flow after the grate and weir, you would need to use a separate zero-storage "pond" to model the water surface elevation after the weir. Then you can have your two outlet pipes, one routed to primary and the other to secondary.
Since the lower "pond" will probably create a tailwater for the weir, you will also need to change to DSI routing. The warning messages will alert you to this situation.
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: Multiple Basin Outlets
RE: Multiple Basin Outlets
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: Multiple Basin Outlets