[Nek5000-users] Using OIFS

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

Hi neks,

I'm trying to simulate a turbulent channel flow like in the presentation "A
comparison
of Nek5000 and OpenFOAM for DNS of turbulent channel flow" of Michael A.
Sprague from the last
user meeting (
http://www.mcs.anl.gov/~fischer/nek5000/sprague_nek5000_dec2010.pdf
 "mid"-case).
In the presentation it is mentioned that the CFL number is approx. 2 so I
have choosen the BDF3/OIFS3
scheme. However the solution blows up and Nek5000 stops the computation
after 49 steps.

Are there any parameters I have to set in the rea-file to get it work? TCHAR
is true and p026 is
set to 3. Dealiasing is turned on as well, but I'm not sure if the weight of
the filter may be wrong.

The files of the case are attached.

Thanks!
Alex
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