[Nek5000-users] Rayleigh example - no flow development

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

Hi Paul,

In my modified version, Ra = 5e7, Pr = 5. For the example, I keep it as the
original values Ra ~1700, Pr = 1.

Regards,
Simon

2015-05-07 21:25 GMT-05:00 <nek5000-users at lists.mcs.anl.gov>:

>
>  Hi Simon,
>
>  What is your Rayleigh number?
>
>  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:* Thursday, May 07, 2015 8:17 PM
> *To:* nek5000-use.
> *Subject:* [Nek5000-users] Rayleigh example - no flow development
>
>   Dear all neks,
>
>  Recently I have tried to modify the rayleigh example to my case.
> However, I discovered that no flow field is developed after a long time.
> All velocities are zero. I guess I miss something important in the example.
> Anyone knows which part of the code could lead to this?
>
> Also, although I start with T = -z, I got asymmetric initial condition,
> something not as I specified as viewed in postnek. Did I miss any point in
> the .rea and .usr? The files are attached here. They are modified rea and
> usr from rayleigh to my case.
>
> Thank you very much.
>
>  Regards,
> Simon
>
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