Dear Saad,

You could experiment with the boundary conditions and applying it either from file or as an equation. If your case is fully 3D (not homogeneous expansion) you could design the mesh to have the ability to set required conditions only to the regions you choose.

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Dear all,

           I use Nektar++ mainly to study time dependent 3D plane Poiseuille flow, using  the Incompressible Navier-Stokes Solver (using a fully 3D configuration),

I'm wondering what would be the best approach to add Blowin and/or Suction at the wall ?

Looking into the user-guide version 5.1.0 section 3.5.1- XML-Session-File>Forcing>Absorption seems to be a usable feature in this context

Is there an efficient and suitable approach to add these perturbations to the flow ?

           Any general guidelines to achieve this are really appreciated,

Thanks in advance,

Kind regards,

Saad

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