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symmetry BC with Navier-Stockes solver
Posted: 04 Jul 2016, 14:43
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
Re: symmetry BC with Navier-Stockes solver
Posted: 05 Jul 2016, 13:11
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
Re: symmetry BC with Navier-Stockes solver
Posted: 05 Jul 2016, 17:49
by julien givernaud
Thank you Peter