Re: [Libmesh-users] Surface PDEs

[Rossi, S. <sr...@em...>]

Thanks Paul,
so it is already implemented. It sounds awesome.
Thanks again,
Best
Simone

On Oct 7, 2016, at 13:34, Paul T. Bauman <ptb...@gm...<mailto:ptb...@gm...>> wrote:



On Fri, Oct 7, 2016 at 12:36 PM, Rossi, Simone <sr...@em...<mailto:sr...@em...>> wrote:
I’d like to extend my libmesh-based reaction-diffusion solver to a surface solver,
taking the trace of the 3D shape functions on the surface mesh.
Before I start implementing a new element,
do you have any suggestion on how to approach it?

If you're only solving on the surface, you can create a two-dimensional manifold mesh and pose the PDE on that. libMesh computes the correct element Jacobians in this case and you have access to both reference and physical element coordinate derivatives during assembly. This is what I do for things like membrane problems.

HTH,

Paul