Re: [Libmesh-users] Surface PDEs

[Rossi, Simone]

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

On Oct 7, 2016, at 13:34, Paul T. Bauman 
> wrote:



On Fri, Oct 7, 2016 at 12:36 PM, Rossi, Simone 
> 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

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Re: [Libmesh-users] Surface PDEs

[Paul T. Bauman]

On Fri, Oct 7, 2016 at 12:36 PM, Rossi, Simone  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
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[Libmesh-users] Surface PDEs

[Rossi, Simone]

Dear all,
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?
Thanks,
Simone
--
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engaging tech sites, SlashDot.org! http://sdm.link/slashdot
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