symmetry BC with Navier-Stockes solver

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julien givernaud
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symmetry BC with Navier-Stockes solver

Post by julien givernaud »

Hello,

What is the right boundary condition to impose a symmetry plane on a 3D simulation in the GUI?
Or with a non GUI simulation...

Best regards

Julien
raback
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Re: symmetry BC with Navier-Stockes solver

Post by raback »

Hi Julien

Typically you would impose the normal component to zero and let the tangential live free.

If you are lucky to have some axis oriented as the normal of the symmetry plane setting the BC is easy, e.g. Velocity 1 = 0.0. If you have some other orientation then you should use Normal-Tangential coordinate system for the boundary and set again the 1st component to zero (it is the normal component).

-Peter
julien givernaud
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Joined: 18 Nov 2014, 18:18
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Re: symmetry BC with Navier-Stockes solver

Post by julien givernaud »

Thank you Peter
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