[Nek5000-users] Solving for fluid flows on a sphere

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

Hi Paul,

I setup a simulation but I keep getting NaN's when I give nontrivial 
initial data. I'm attaching the relevant files. Could you please try it out?

I checked that the initial data is divergence free and satisfies the 
boundary conditions (u_r = 0, du_theta/dr = 0, du_phi/dr = 0).

Regards,
Mani

On 08/11/2011 05:46 PM, nek5000-users at lists.mcs.anl.gov wrote:
>
> Hi Mani,
>
> Probably your best bet is to use a very thin layer of elements
> in a 3D spherical shell with SYM bcs on faces 5 & 6, plus the
> stress formulation.  I would imagine that a shell of thickness
> .001 with R=1.0 might be feasible.
>
> Instructions for constructing a 3D shell can be found in
> www.mcs.anl.gov/~fischer/primer.pdf
>
> (Some of this info may already have been transferred into
> current manual.)   We can help with this if you need any
> assistance.
>
> Regards,
>
> Paul
>
>
> On Thu, 11 Aug 2011, nek5000-users at lists.mcs.anl.gov wrote:
>
>> Hi Nek devs,
>>
>> Is it possible to use NEK to solve for Navier Stokes equations on the
>> surface of a sphere, where r is fixed and the velocity varies in 
>> theta and
>> phi?
>>
>> Thanks,
>> Mani Chandra
>> _______________________________________________
>> Nek5000-users mailing list
>> Nek5000-users at lists.mcs.anl.gov
>> https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users
>>
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