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Help to find a 3D varying velocity inlet boundary condition

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Old   April 11, 2021, 23:00
Post Help to find a 3D varying velocity inlet boundary condition
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Vian Janse van Rensburg
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Hi, I am brand new to cfd, and have been working on a fairly tricky problem.

I am investigating a the ground effects on a freely oscillating cylinder in 3D, I have everything perfect, I just need help with 1 thing:

In my problem there is a varying inlet velocity, I have been searching for so so long to find a boundary condition for it but I cant seem to find anything that I could use.

The best one I have been able to find is the atmBoundaryLayer , but this one is only for 2D, does anyone know if I can somehow alter it to make it work for 3D, or does anyone know a condition that would work for it?
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Old   April 17, 2021, 19:41
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Icaro Amorim de Carvalho
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I'm not entirely sure if you're talking about OpenFOAM, but I have heard of groovyBC (https://openfoamwiki.net/index.php/Contrib/groovyBC). Hope that helps.
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Old   April 27, 2021, 09:10
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scott montes
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I am not sure that's possible but you may try looking carefully through the guide: https://www.openfoam.com/documentati...daryLayer.html











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3d simulation, boundary condition, ground effect, inlet, varying velocity

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