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CUSTOM SWALE USING REACH

CUSTOM SWALE USING REACH

CUSTOM SWALE USING REACH

(OP)
I am trying to model a swale which has a berm down the center.  Using the custom section in the reach node I created a section and a profile of the swale.  Everything looks ok when its being built in the model.  However when I run the model at smaller events it only calculates (graphic shows water) only in one bay and not both.  During larger events when the water would submerge the berm both bays fill up.  Any idea how I can get this to distribute the flow evenly over both bays?

RE: CUSTOM SWALE USING REACH

The water in the two bays should be at the same surface elevation - but not necessarily the same depth.  If the bays are different depths, the water depth will be different, but the elevation should always be the same.

Peter Smart
HydroCAD Software
www.hydrocad.net
 

RE: CUSTOM SWALE USING REACH

OK.  I see what you mean.  It looks like a cosmetic issue with the way the water surface is displayed in the cross-section illustration.  If you check the stage-storage data at various depths you will find that does include the area of both bays, and that's what the routing calculations are based on.
 

Peter Smart
HydroCAD Software
www.hydrocad.net
 

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