[Nek5000-users] Periodic BC on non-parallel boundaries

[nek5000-users at lists.mcs.anl.gov]

Well then it seems I am stuck.  Might a work-around be possible for a 1/4 or
1/2 annulus?  For instance with 1/2, I would just need to match (u,v) to
(-u,-v).

David

On Mon, Oct 10, 2011 at 1:41 PM, <nek5000-users at lists.mcs.anl.gov> wrote:

> btw: I am afraid, the stress formulation doesn't support cyclic BCs at
> the moment!
> -Stefan
>
> On 10/10/11, S K <stgeke at googlemail.com> wrote:
> > You are right, it's an undocumented AND experimental feature. Just
> > flag the boundaries as periodic. Yes, just add another IFCYCLIC line.
> > Currently, there is no stress formulation support for Pn/Pn.
> >
> > -Stefan
> >
> > On 10/10/11, nek5000-users at lists.mcs.anl.gov
> > <nek5000-users at lists.mcs.anl.gov> wrote:
> >> Hi Stephan,
> >>
> >> I see, thanks.  I can`t find any documentation about cyclic BC`s.  What
> >> is
> >> their symbol for the box file?  Also, I don`t see a logical switch for
> >> IFCYCLIC.  Do I just add another line?
> >>
> >> Also, I have stress-free BC on curved boundaries.  A series of error
> >> messages led me to believe that I had to use the stress formulation, and
> >> that this required me to use Pn/Pn-2.  Is this not the case?
> >>
> >> Best,
> >>
> >> David
> >>
> >
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