[Nektar-users] Coupled incompressible solver with periodic conditions and regular mesh

Hi, I think I found a problem when importing Gmsh meshes into Nektar. This happens if I try to use the coupled solver and the periodic BC. Works with VelocityCorrection, or if BC are standard D / N. What I do: 1. Using the geometry in channel.geo create a mesh in Gmsh. This is a rectangular channel. I use Transfinite and Recombine to get a structured quad mesh. 2. I use MeshConvert with paralign to generate the channel.xml 3. If run with the attached cond2D.xml Nektar fails in AssemblyMap.cpp line 284, with "These values should never be the same" The problem is persistent with other recombined/transfinite meshes. If any of you is aware of how I could try to avoid the problem, I would be obliged. Regards, Stan Gepner