Hi,
deal.II only supports quads in 2D and hex in 3D.So if you have triangles
you will need to split them. For the quads, you probably want to load order
one quads and then, use a manifold to get the higher order. step 49
(https://dealii.org/current/doxygen/deal.II/step_49.html) shows how to
manipulate meshes.
Best,
Bruno
On Tuesday, May 26, 2020 at 10:13:35 AM UTC-4, 徐辉 wrote:
>
> I want using different type of element in a grid in dealii.
>
> I already have a grid, I want solve problem based on this grid. The grid
> contain different type of element. For example in 2D, I have some one order
> triangle element and some one order quadrilateral element. Or another
> example in 2D, I have some some one order quadrilateral element and some
> two order quadrilateral element.
>
> I search dealii's tutorial do not found any topic talk about using
> different type element in a grid. And I found in dealii FAQ first item that
> seems dealii not support triangle or tetrahedra.
>
> Does dealii can only support one kind of element to assemble a discrete
> system? All element in grid must be same? Is there any reference can help
> me?
>
> Thanks for your time.
>
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