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Open Channel Flow CFD Failure

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Old   November 7, 2022, 17:22
Default Open Channel Flow CFD Failure
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Ross Henteleff
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I am trying to test a specific set of velocities and how a flexible body responds to them in a basic open channel flow system using REEF3D CFD.

Depending on the particular velocity, these simulations have failed in one of two ways, namely exceeding the critical velocity and the time step, delta_t, being too small. Attached are example control files of each.

I based these runs on the example provided in the manual, so I am unsure what is causing them to fail. Looking at the time step failure example in Paraview, I see no excessive or strange velocities until the simulation fails.

Any help on this matter would be appreciated.
Attached Files
File Type: txt ctrl_delT.txt (682 Bytes, 9 views)
File Type: txt control_delT.txt (108 Bytes, 4 views)
File Type: txt ctrl_Vcrit.txt (682 Bytes, 5 views)
File Type: txt control_Vcrit.txt (108 Bytes, 3 views)
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Old   November 11, 2022, 07:14
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Hans Bihs
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Hi Ross,

I guess the first step is to test the cases with out the Z options present.
Hans Bihs
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failure, open channel flow, reef3d cfd

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