Wall Boundary Conditions around a cylinder

[giakbottacini]

Hi,
I'm solving the compressible Euler equations around a cylinder in a 2D domain. I need to impose the normal velocity at the cylinder equal to 0, is it possible using deepxde?
For now i impose an homogeneous Dirichlet in this way
bc_c1 = dde.icbc.DirichletBC(spatial_domain, lambda x: 0, boundary_cylinder, component=0)
bc_c2 = dde.icbc.DirichletBC(spatial_domain, lambda x: 0, boundary_cylinder, component=1)
on both horizontal and vertical velocity but is not right in a case of zero viscosity as this.
Thank you.
Giacomo

[lululxvi]

Seems like Neumann BC.