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Flow rate below a bridge and overflow computation

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Old   December 14, 2018, 10:23
Post Flow rate below a bridge and overflow computation
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Hello foamers!

I'm a starter in OpenFOAM working on a project about bridge overflow.
There are many ways to compute the flow rate at inlet/outlet patch and also some arbitary plane inside the mesh.
But as far as I know, all those methods can only be applied to the entire cross section.
Is there a way to compute the flow rate/mass flow in separated sections?
Or maybe some hints on calculation of flow in two outlets (which could somehow resemble the case) ?

Thanks,
Lei
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bridge design, flow rate, free surface flow, incompressible flow, mass flow splitting

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