[Nek5000-users] Linearised Navier Stokes

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

Hi Philipp,

     Can you please outline the procedure to be followed for
calculating the perturbed velocity and temperature field based on the
following information.

    I have a 3d annulus domain with vertical gravity pointing downward
and temperature gradient in the radial direction.
This leads to a base flow about which I have to linearize the problem.
Please let me know how to include the information of the base flow and
base temperature gradient into the perturbation calculations.

Thank you
Swarandeep

On Thu, Aug 10, 2017 at 5:51 PM,  <nek5000-users at lists.mcs.anl.gov> wrote:
> Hi,
> the linearised version is included in the main version of the code. You
> activate perturbations by setting NPERT different from zero. The relevant
> routines in the code are collected in the file perturb.f.
>
> Hope this helps,
> philipp
>
>
> On 2017-08-10 12:56, nek5000-users at lists.mcs.anl.gov wrote:
>>
>> Hi Nek Forum,
>>
>>      How to obtain the linearised version of the Nek5000 code. Please
>> advice.
>>
>> Thanks
>>   Swarandeep
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