[Nek5000-users] calculating friction velocity/wall shear stress

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

Hi Ami,

I believe, developing a set_obj() routine followed by tourque_calc() is the
easiest thing to do. Then calculate drag(obj) and eventually you can
calculate the surface area, and divide it by the drag, to obtain wall shear
stress

Best Regards,
Tanmoy

On Thu, Mar 5, 2015 at 2:16 PM, <nek5000-users at lists.mcs.anl.gov> wrote:

> Hello,
>
> I want to calculate friction velocity or wall shear stress along seveal
> lines, like lines around circle, my question is what would be the easiest
> way to do?! defining a line in set_obj and calling torque_calc in userchk
> or finding the velocity derivatives in userchck and then calculating wall
> shear stress or even using post processing tool like VisIt or postnek?!
>
> Thanks,
> Ami
>
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