AutoCAD Civil 3D - Stormwater

AutoCAD Civil 3D - Stormwater

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Registered: ‎01-07-2011
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SSA - Upwelling Flows through Inlets

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12-08-2012 01:29 PM

I see from the model output that SSA is using rating curves to model inlet interception. I'm sure those rating curves account for typical velocity and trajectory effects for on-grade inlets, therefore limiting capacity, and would be different than straight orifice and weir equation flowrates.


What method is SSA using to model the upwelling flows of a surcharging inlet that go up and out the inlet on to the surface? Please see picture below:



Fred Ernst, PE
C3D 2015 SP2
Ernst Engineering
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