[Nek5000-users] Number of elements for 3D simulations

nek5000-users at lists.mcs.anl.gov nek5000-users at lists.mcs.anl.gov
Thu Jun 16 07:25:06 CDT 2011


Hi David,

You're refering to periodic, correct?

Is your spanwise direction the "z" direction in the element? (really,
what we call "t"...)

We might be able to correct the issue for this particular case,
assuming you don't have periodicity in the other directions.

Paul


On Thu, 16 Jun 2011, nek5000-users at lists.mcs.anl.gov wrote:

> Hello,
>
> I wanted to ask if it would be possible to allow to run nekton with less
> than 3 elements in the z-direction. I run a lot of simulations for a
> spanwise homogeneous swept wing geometry. The baseflow can be obtained
> solving a 2D problem where the heat equation is solved as the spanwise
> momentum equation. However, I also want to study the stability of this
> flow and thus solve the linearised Navier-Stokes eq. for some modal
> disturbances, i.e. u(x,y,z) = u'(x,y)*exp(i*beta*z). If I would be able
> to resolve this mode with less than 3 elements in the spanwise direction
> it would save me a lot of computational time.
>
> Best regards,
>
> David
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