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how to define the symmetry BC at curved boundary

0 votes

Hi All
I am working on Navier-Stokes, I want to give a symmetry bc for velocity on a curved boundary as. V \dot n= 0 at Boundary, how to implement it in Fenics?

cheers
/Wei

asked Jun 15, 2014 by waynezw0618 FEniCS Novice (450 points)

1 Answer

+2 votes

Hi, the symmetry boundary conditions on curved boundaries can be built in weakly via
Nitsche's method, see here, or Babuska's penalty method, see here.

answered Jun 15, 2014 by MiroK FEniCS Expert (80,920 points)

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