[MITgcm-support] flow over 3d Gaussian topography

[subhajit kar]

Thanks Martin, I solved the issue by using a periodic boundary conditions.

Right now it's working fine.

Subhajit

On Mon, Jan 8, 2018 at 9:55 PM, Martin Losch <Martin.Losch at awi.de> wrote:

> Subhajit,
>
> what’s wrong with the figure? What do you expect?
>
> on the open boundaries, etaN is always set to zero (if you don’t use the
> nonlinear free surface). These grid points don’t “belong” to the model
> domain where etaN is solved for.
>
> Periodic boundary conditions: just turn off the open boundary package
> (useOBCS = .FALSE. in data.pkg).
>
> Martin
>
>
> > On 26. Dec 2017, at 16:20, subhajit kar <subhajitkar19 at gmail.com> wrote:
> >
> > Hi all,
> >
> >    I am trying model a flow over a Gaussian topography using exp4
> example.
> >
> >    I should a surface imprint of topography on the free surface
> according to hydraulic theory.
> >
> >    I am getting something which is not exactly surface imprint. I have
> attached a snapshot of surface elevation due to topography.
> >
> >    Also the boundary has a zero surface height value.
> >
> >    Is there any way I can give a periodic boundary condition?
> >
> >
> > Thanks,
> > Subhajit
> > <eta.png>_______________________________________________
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>
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