[Nek5000-users] turbulent 3d box

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

Hi Paul,
Regarding the 3dbox:
The forcing which I propose is known as the ABC flow 
(Arnold-Beltrami-Childress) and has steady solutions (in the form of ABC 
flow) with Re=1/nu (nu the viscosity) Re=<12 (in periodic box).
The forcing should be in the form:
f=Re*ABC in order to balance the dissipation term.
This settings can serve as a benchmark for pure hydro/mhd problems.

I tried to fix the example which you have sent me, but I don't succeed
retreiving the expected values.
I attach the relevant files( tarball file).
Best regards,
Barak



On 12/18/2013 03:29 AM, nek5000-users at lists.mcs.anl.gov wrote:
>
> Hi Barak,
>
> I added a 3d periodic box under "3dbox" in the examples
> directory.
>
> Paul
>
>
> Dear nek's,
> I would like to run the following problem:
> a 3D periodic box, small viscosity and the following forcing:
>
> fx=cos(y)+sin(z)
> fy=cos(z)+sin(x)
> fz=cos(x)+sin(y)
>
> Do you have a similar example?
>
> Many thanks,
> Barak
>
>
> _______________________________________________
> Nek5000-users mailing list
> Nek5000-users at lists.mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users
> _______________________________________________
> Nek5000-users mailing list
> Nek5000-users at lists.mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users
>


-------------- next part --------------
A non-text attachment was scrubbed...
Name: b3d.tar.gz
Type: application/x-tar
Size: 28509 bytes
Desc: not available
URL: <http://lists.mcs.anl.gov/pipermail/nek5000-users/attachments/20131222/c2f60d78/attachment-0001.tar>