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Wind profile Inlet

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Old   October 10, 2019, 08:45
Default Wind profile Inlet
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Carlo_P
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Hey,
I would perform a simulation of the air around a building.


As inlet I should impose a velocity, which is depending on the height


Do anyone wrote an Inlet file like this?
Do you have any idea where it is possible to find one?
Thanks


Carlo



https://en.wikipedia.org/wiki/Wind_profile_power_law
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Old   October 10, 2019, 09:33
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Kmeti Rao
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Hi Carlo,

If you want to implement varying velocity at the inlet, use swak4Foam, you can just implement the formula that have been described in the reference link, using groovyBC. I once used varying velocity at the inlet for wind turbine simulation, that required ground effects. In that case I have had implemented groovyBC in such a way that the velocity of air at the inlet increases from zero to free-stream velocity in a parabolic manner.

Krao
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Old   October 10, 2019, 16:54
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Luis Eduardo
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Hi Carlo, you can also use the atmBoundaryLayer native from OpenFOAM, it will give you an inlet velocity varying with the height following a log law. Check the turbineSiting tutorial, it is used there.

Best Regards,
Luis
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