HEC-HMS Modeling For Pond with Pump
HEC-HMS Modeling For Pond with Pump
(OP)
I have a site where we are putting a detention pond that will need a lift station. With the new requirements to show the 10-yr and 100-yr WSEs, I'm not really sure how to model this or come up with the WSEs. Do I need to set the system to have a set discharge rate (and would it be the 100-yr rate or the 10-yr rate)? I can't seem to wrap my head around how to even start modeling this.
Any help would be appreciated!
Thanks!
Any help would be appreciated!
Thanks!
RE: HEC-HMS Modeling For Pond with Pump
The other option is to use a constant flow rate or discharge from the pump in Elevation-Discharge table as a 'Paired Data' linked to the Reservoir outlet. To simplify it, you assume the pump is discharging at a constant rate even as the elevations in your detention pond change. On top of the menu bar, go to Component > Create A Paired Data > select 'Elevation-Discharge Functions'. That should get you started.