Modelling Flow Spreaders in Hydro Cad

[realmtc]

I am discharging from the site into a flow spreader and then sheet flowing across the native ground. How should I model the flow spreader so that i can input all the critical data regarding length, width, etc?

 

[psmart]

For the overland flow, you can generally use a reach with a wide, flat bottom, together with a high Manning's value appropriate to the shallow flow. For details see

http://www.hydrocad.net/overland.htm

As for the spreader itself, it may not appear in the model at all. If there is enough storage volume to create a dentention effect, you could model this as a pond with a weir outlet.


Peter Smart
HydroCAD Software

http://www.hydrocad.net