[Nek5000-users] Moving Wall Advice

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

Hi Mike,

No idea of whether it will work or not...I would suggest to try it and
verify (which is what I would do in that case).   In principle, it should
work ok, but I don't know that anyone has tried it for a very long time.

Note that the SIZE file for moving mesh is different from the usual one.

Paul
________________________________________
From: nek5000-users-bounces at lists.mcs.anl.gov [nek5000-users-bounces at lists.mcs.anl.gov] on behalf of nek5000-users at lists.mcs.anl.gov [nek5000-users at lists.mcs.anl.gov]
Sent: Tuesday, October 07, 2014 9:31 AM
To: nek5000-users at lists.mcs.anl.gov
Subject: Re: [Nek5000-users] Moving Wall Advice

Paul, Oana -- thanks for the tips.

The ocyl example seems very close to what I need.

One question: Will the ALE formulation as currently implemented work if I'm solving a 2D axisymmetric-flow problem (where the temperature is used to represent the azimuthal flow component)?

Thanks again,
Mike




On Oct 7, 2014, at 8:08 AM, <nek5000-users at lists.mcs.anl.gov> wrote:

>
> Hi Mike,
>
> There is also the ocyl example, which has an oscillating cylinder.
>
> Paul
>
> ________________________________________
> From: nek5000-users-bounces at lists.mcs.anl.gov [nek5000-users-bounces at lists.mcs.anl.gov] on behalf of nek5000-users at lists.mcs.anl.gov [nek5000-users at lists.mcs.anl.gov]
> Sent: Friday, October 03, 2014 2:36 PM
> To: nek5000-users at lists.mcs.anl.gov
> Subject: [Nek5000-users] Moving Wall Advice
>
> Hello Neks,
>
> I'm trying to simulate a flow where one of the boundaries is moving in a manner that requires the mesh to deform as a function of time.   In short, the conditions of the flow will determine how the boundary moves (it's a fluid-structure interaction problem, but the structure is a rigid body suspended in the fluid).
>
> Are there any available examples that would provide guidance?
>
> If not, does anyone out there want to share some wisdom?  For example, I understand that I will need IFMVBD = True, and I will need "mv" boundary conditions specified in the .rea file, but in which routine should I modify the mesh node locations and velocities?
>
> I found a similar question in the archive under the subject "what parameters for a moving wall induced velocity problem?" but there didn't seem to be any follow-up responses.
>
> Thanks in advance.
>
> Cheers,
> Mike
>
>
>
>
>
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