[Nek5000-users] Lid driven cavity using nek5000

nek5000-users at lists.mcs.anl.gov nek5000-users at lists.mcs.anl.gov
Mon Feb 24 16:27:29 CST 2014


Hi Shriram,

Just use the 'v  ' boundary condition on the top lid
and that should suffice.

You can generate this mesh from genbox.

Best,

Paul


On Mon, 24 Feb 2014, nek5000-users at lists.mcs.anl.gov wrote:

> Hello,
>
> I'm trying to solve a simple lid driven cavity problem with nek5000. I set up 
> a coarse 3d mesh and prescribed the velocity for the lid according to 
> Bouffanis et al. 2008 PoF (to ensure that there is no discontinuity between 
> the lid and the walls),I'm getting a vanishing jacobian error. I'm not sure 
> how nek solves, but for the moving wall do I have to prescribe the mesh 
> velocity equal to the lid velocity or is there a way to specify that the mesh 
> doesn't really move in time?
>
> Thanks for your help!
>
> -- 
> Regards
> Shriram
>
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