[Nek5000-users] rotational symmetry

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

Hi Paul,

This is the first answer -- thanks!

I'm using IFSTRS (for variable viscosity), so I believe I'm stuck with PN-PN-2, and hence a full 3D model.

Good to hear about the new Pn-PN multi-grid solver -- I'll wait for the repo update before I do those channel-flow runs.

Cheers,
Mike


On Mar 6, 2012, at 10:28 AM, <nek5000-users at lists.mcs.anl.gov> <nek5000-users at lists.mcs.anl.gov> wrote:

> 
> Hi Mike,
> 
> I'm not certain if this post ever got an answer?
> 
> There is support for cyclic bcs, if you are using Pn-Pn.
> 
> Also, there is support for swirl + axisymmetry, if you
> just want the k=0 azimuthal mode.
> 
> Incidentally, we have a new multigrid solver for Pn-Pn
> that should be in the repo within a couple of days --- running
> it through buildbot tests now.   This solver is better or
> faster than the Pn-Pn-2 SEMG code.
> 
> Paul
> 
> 
> On Wed, 22 Feb 2012, nek5000-users at lists.mcs.anl.gov wrote:
> 
>> Hello Neks.
>> 
>> I'm simulating rotating flow in a cylindrical geometry via a Coriolis forcing.  Is there any periodic-BC mechanism for exploiting the symmetry, or do I need to model the whole thing?
>> 
>> Thanks.
>> --Mike
>> 
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