[Nek5000-users] line integral: 1d average

nek5000-users at lists.mcs.anl.gov nek5000-users at lists.mcs.anl.gov
Mon Jul 22 14:54:02 CDT 2013


Hi Hesam,

The turbChannel example does a planar average, reducing the 3d data to
a 1d profile. In the past, I wanted the same thing as you, and so
slightly modified that code. I can find it for you if you'd like.

Is your domain homogeneous in the z-direction?

Justin

On Mon, Jul 22, 2013 at 12:45 PM,  <nek5000-users at lists.mcs.anl.gov> wrote:
> Hello Neks
>
> It is clear to me how to compute the volume and area integrals in Nek by
> reading the previous posts. However I could not find the proper
> implementation steps for line integral for doing 1d averages (i.e.
> extracting a 2d profile from a 3d field). In particular I would like to find
> the average along z-axis (yielding  ua = <u>_z, where ua( lx1, ly1,
> lelx*lely) if I am not mistaken).
>
> I would appreciate if you could help me on that and guide me to the right
> direction.
>
> Regards,
> Hesam
>
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