[petsc-users] About the FV function

[Matthew Knepley]

On Wed, May 20, 2015 at 10:27 PM, Rongliang Chen <rongliang.chan at gmail.com>
wrote:

> Hi there,
>
> I have a question about the finite volume formulation. In function
> TSComputeRHSFunction_DMPlex, when we compute the flux (line 617), why we do
> not multiply the face area? In the formulation of the face flux, I think we
> need to multiply the face area and divide the element volume. '
>

The normals are area weighted. I will indicate this in the documentation:

https://bitbucket.org/petsc/petsc/src/5a737092961693f09ed5214c2133c4a7b76f72d7/src/dm/impls/plex/plexgeometry.c?at=master#cl-1208

  Thanks,

     Matt

Best,
> Rongliang
>



-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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