[petsc-users] DMPlex export to hdf5/vtk for triangle/prism mesh

[Adrian Croucher]

On 30/05/17 14:55, Matthew Knepley wrote:
> On Mon, May 29, 2017 at 9:52 PM, Adrian Croucher 
> <a.croucher at auckland.ac.nz <mailto:a.croucher at auckland.ac.nz>> wrote:
>
>     On 30/05/17 14:45, Matthew Knepley wrote:
>
>>
>>
>>     What kind of basis are you expecting? A tensor product?
>
>     At present we don't even need basis functions, because we're just
>     doing flow simulation and it's all finite volume.
>
>
> Okay good. Now for cell geometry. What kind of deformation do you 
> allow in the wedge?

As in Fabian's application, these elements arise from meshes which have 
a simple layered structure in the vertical, but are unstructured in the 
horizontal (can be mixtures of quads and triangles in our case- in fact 
the triangles usually only occur where there is local refinement).

So for us these wedges are just horizontal triangles projected downwards 
in the vertical- not really deformed at all.

> and what do you want
> to know? For FV, we are providing the centroid and volume. If that is 
> enough, we could be done quickly.

Yes, just centroid and volume would be enough.

- Adrian

-- 
Dr Adrian Croucher
Senior Research Fellow
Department of Engineering Science
University of Auckland, New Zealand
email: a.croucher at auckland.ac.nz
tel: +64 (0)9 923 4611

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