[Nek5000-users] Can nek do this?

[nek5000-users at lists.mcs.anl.gov]

Hi developers and users of nek5000,
I have been trying for a long time now to rotate the whole computational
domain to simulate a rotating wing. I have scoured the nek forums but was
unable to get any information on this. Is this even possible? I initially
wanted to add a Coriolis force but coriolis in the Navier stokes is a cross
product between angular velocity vector  and velocity vector  and in the
userf, when tried this I received a compilation error saying that the ranks
are different. This implied that i must use ux, uy and uz instead of vx,vy
and vz. But as i understand, ux uy and uz are given values and not the
velocity field taken from the calculations.  Also for a rotating wing, it
don't think it is advisable to apply a coriolis force to simulate rotation
as the geometry is fixed and the angle of attack is not changing. This is
why I'm trying to rotate the whole computational domain. In that sense, i
can avoid using the ALE formulation for deforming meshes and therefore
avoid the vanishing Jacobian errors which I have encountered. Can anybody
guide me in the right direction?


Rif
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