Hi Jacques,

Thanks, I've managed to get similar forcing working now.

Is it possible to use conditional operators inside the FORMULA expressions?

Kind Regards,
Kumi


On Wed, Jun 26, 2024 at 04:15:15PM +0000, Xing, Jacques wrote:
> Hi Kumi,
>
> I can take a look at the manufacture solution example to see how you can specify a space-varying and time-dependant forcing term:
>
> https://gitlab.nektar.info/nektar/nektar/-/blob/master/solvers/IncNavierStokesSolver/Tests/manufactured_3DH1D.xml?ref_type=heads
>
> Cheers,
> Jacques
>
> ________________________________
> From: nektar-users-bounces@imperial.ac.uk <nektar-users-bounces@imperial.ac.uk> on behalf of Kumi Yasuda <kumi@polyta.pe>
> Sent: 26 June 2024 07:45
> To: nektar-users <nektar-users@imperial.ac.uk>
> Subject: [Nektar-users] Forcing / momentum source for incompressible Navier-Stokes
>
>
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> Hi all,
>
> When using the incompressible Navier-Stokes solver, is it possible to add
> a force that is a function of spatial location, for example a localised
> "ideal fan" momentum source in a specific region?
>
> Could this force also be a function of time and/or of the momentum at a
> (different) given point or region?
>
> Kind Regards,
> Kumi
>
>
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