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Fluent Open Channel Simulation

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Old   October 12, 2016, 12:58
Default Fluent Open Channel Simulation
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Allen Hammack
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I have a simulation that includes a culvert issuing water into one end of an open channel. The inflow boundary has only water. The outflow boundary has a pressure-outlet boundary condition with the free-surface level prescribed. My simulation keeps crashing. The domain fills completely with water, even through I initialize the open channel area to have water on the bottom and air on the top. For some reason, the free-surface level at the outflow does not seem to be controlling anything. Does anyone have any suggestions of what I might be doing wrong?
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