What is the best way to set a downstream boundary condition for no outflow?

[John Clark]

Hi guys,

I would like to model a reach that acts like “reservoir”. Accodringly, my downstream boundary condition should have no outflow i.e., it should be like a “wall” boundary condition. I think that I have 2 different options:
1º use and inlet structure with no oppening;
2º use a RC with almost no outflow (I think 0 outflow is impossible for this one).

What you guys would recomend?

Thanks,

John

[Anonymous]

Suggest that you use a flow boundary condition that contains a flow value of zero for all times. That will result in ever- increasing WSEL’s upstream if there is no outlet.

[John Clark]

Thanks Michael.

It should be the same for upstream boundary condition? The inflow and outflow are made from lateral structures.

[Author]

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