Re: [Gmsh] periodic pairs of internal nodes of each edge

2018-07-26 Thread Nan Li
Dear Christophe, Thank you for your reply. In fact at first I thought I didn't use 'periodic surface' the right way. Now I can focus on the post-treatment. I have checked the node ordering of triangle_6 element, point 3 is always in the middle of point 0 and point 1, and point 4 is always in the

Re: [Gmsh] periodic pairs of internal nodes of each edge

2018-07-26 Thread Koen Hillewaert (Cenaero)
Hi all, in my opinion, this correspondence should not be stored since it can be deduced straightforwardly from the principal vertices. In general, I think we should limit the data in the file without incurring a huge cost to reconstruct missing information or even risk ambiguities - both are

Re: [Gmsh] periodic pairs of internal nodes of each edge

2018-07-26 Thread Christophe Geuzaine
> On 26 Jul 2018, at 08:24, Nan Li wrote: > > Hello everyone, > > I am trying to mesh a cross-cavity with high order tetrahedron element > (tetrahedron 10) and apply periodic boundary condition in x direction and y > direction. As the periodic boundary condition has nothing to do with the

[Gmsh] periodic pairs of internal nodes of each edge

2018-07-26 Thread Nan Li
Hello everyone, I am trying to mesh a cross-cavity with high order tetrahedron element (tetrahedron 10) and apply periodic boundary condition in x direction and y direction. As the periodic boundary condition has nothing to do with the cavity, you can consider the cross-cavity as a cube. I