[petsc-users] TS_SSP implementation for co-dependent variables

[Manuel Valera]

To correct for the deformation of the sigma coordinate grid... without this
correction the velocity become unphysical in the zones of high slope of the
grid. This is very specific of our model and probably will be solved by
updating the equations transformation, but that's not nearly close to
happening right now.

On Wed, Oct 9, 2019 at 3:47 PM Jed Brown <jed at jedbrown.org> wrote:

> Manuel Valera <mvalera-w at sdsu.edu> writes:
>
> > Thanks,
> >
> > My time integration schemes are all explicit, sorry if this a very
> atypical
> > setup. This is similar to the barotropic splitting but not exactly, we
> > don't have free surface in the model, this is only to correct for sigma
> > coordinates deformations in the velocity field.
> >
> > From how i see it this could be solved by obtaining the intermediate
> stages
> > and then updating them accordingly, is this not possible to do ?
>
> Why are you splitting if all components are explicit and not subcycled?
>
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