Can anyone please assist in how to model a backflow preventer for a pipe network in StormCAD? Am looking to model a pipe system where flow will only be occurring in one direction and backflows are prevented by a check valve at the outfall.
From what I have read, currently backflows are noted in the program as negative flows which we are trying to design a system to not allow. We have tried modifying both pipe properties and catch basin properties and have not seen this option.
Thank you
In StormCAD, flow is always directed toward the downstream outfall, so no reversal should occur.
If you have a more complex situation where you expect reverse flow to occur and you need to route hydrographs (as opposed to just a peak flow in StormCAD) then you should take a look at CivilStorm or SewerGEMS. These products have two dynamic numerical solvers available, which can handle flow splits, loops, flow reversal as well as flap gates on the outfall ("Tidal Gate?" = True)
CivilStorm
SewerGEMS
Regards,
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.