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Hi,

 

I'm currently working on a project involving the periodic hill geometry, and I've encountered an issue with the mesh simulation using Nektar. Despite successfully creating a decent mesh and correctly labeling all physical groups (inlet, outlet, top, and bottom boundary), I've noticed that the vertices at the inlet seem to exhibit a no-slip boundary condition, while the edges themselves seem to follow a periodic inlet/outlet condition. This behavior is unexpected since I've specified a periodic inlet/outlet boundary condition during the simulation. Has anyone experienced this problem before and found a way to resolve it? Any suggestions or insights would be greatly appreciated! A figure of P order of 5 is attached to demonstrate the problem visually.

 

 

Thanks,

Dustin Ma