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Old 12-14-2006, 09:11 AM
yann.viala yann.viala is offline
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Join Date: Jun 2006
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Re: Boundary condition not respected in steady flow analysis

Thank you jarvus lunt for your answer. I have indeed found what I am looking for in the section 4.6 of the hydraulic reference manual.

But I keep on thinking that the model should not have to set a downstream condition other than the one seted by the user. The user theoricaly knows what happen in the flow downstream of the model, the software not.

In the example you are giving, if you end the model at the top of the cliff, the downstream condition should be set to critical depth, but if you decide to modeled the lake and the cliff (even if all hypothesis of equations validity are not respected !) the downstream condition should be set to the lake elevation.
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