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calculation of streamFunction on a 2D slice of a 3D case

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Old   September 10, 2021, 07:40
Default calculation of streamFunction on a 2D slice of a 3D case
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A. Min
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Hi everybody

As you know the streamFunction can be calculated just in 2D cases. I solved a 3D flow in a channel with a square cross-section and now I want to calculate the streamFunction in a plane (to see the secondary flow structures). I can extract the data of that plane using sample or slice (in ParaView). But I don't know how to save it as an initial condition of a 2D OpenFOAM case?

If I could save it as a 2D case, I set "empty" boundary conditions for front and back boundaries.

Do you know how can I do that?

Thanks
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