[Nek5000-users] Question about method & error

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

Hi Frank,

On Apr 6, 2010, at 12:32 PM, nek5000-users at lists.mcs.anl.gov wrote:
> Am I correct in understanding that all components of velocity are
> stored at the same locations (the Gauss–Lobatto–Legendre points), while
> the pressure is located at the Gauss–Legendre points?  This being in
> contrast to a MAC type staggered grid, where each velocity component
> resides at different spatial locations.
> 
Yes that's correct!  In NEK two different methods are implemented:

PN/PN: (v,p) are defined on the GLL points
PN/PN-2: v is defined on the GLL points and p on the GL points


> VisIt could not read from the file
> "/home/fmuldoo/nek5_svn/examples/turbChannel-1/turbChannel0.f0001".
> 
> The generated error message was:
> 
> There was an error
> opening /home/fmuldoo/nek5_svn/examples/turbChannel-1/turbChannel0.f0001. It may be an invalid file.  VisIt tried using the following file format readers to open the file: Silo
> 
> When using the following metadata file:
> 
> NEK5000
> version: 1.0
> filetemplate:  turbChannel0.f%04d
> firsttimestep: 1
> numtimesteps: 1
It seems like you're using a wrong filetemplate. Please try again with:
filetemplate:  turbChannel%01d.f%04d


#Stefan