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Dear Nektar++ users and developers:

Sorry to bother everyone here, however, I need some help with boundary condition setting in the IncNS solver.

My case is a 3D model with xz-symmetric plane:

1. Is there a boundary condition of symmetry surfaces in Nektar++ IncNS solver (such as symmetry boundary in Ansys Fluent), and is there an alternative scheme (if xz-plane is the symmetric plane how could I properly set [u v w p] bc-vector on the y=0 mid-plane? Neumann u=0, Dirichlet v=0, Neumann w=0, Dirichlet p=0?)
2. If there is a boundary condition such as a symmetry surface, whether the flow field of the full-model can be generated from the half-model fld files utilizing the FieldConvert tool. Could it be reliably implemented using pointwise file (calculate the half-mode (if possible), write out the DAT (tecplot) file, write the data symmetrically to a pointwise file, and then write the full-mode mesh)?

Thank you for your help and look forward to your discussion and response.
Thanks to the Nektar++ project team.

Best Regards,

Wang Zhouyang