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Steady state spillway simulation

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Old   December 6, 2015, 21:36
Default Steady state spillway simulation
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Vlad Popescu
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Hello fellow CFDers,

I'll get straight to the point.

I am using StarCCM to model a section of a dam with an assumed constant discharge, and I was indicated that this problem might be in fact a steady state problem. However up to this point the only way I could do this was to start the problem as implicit unsteady and then switch to a steady state...but residuals don't seem to drop down at all. What should approach should I use to try and convert this to a steady state problem.

Boundary conditions:
Inlet - stagnation inlet - fixed hydrostatic pressure in the forebay
Outlet - pressure outlet - 0 Pascals (i.e. no hydrostatic pressure requirement at exit)
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