|January 31, 2012, 12:16||
Running ELES in FLUENT
Dear CFD colleagues,
I am running into some error/warning message from FLUENT that doesn't look very good. The message is the following:
Vortex Method on zone 2: The zone seems to be highly non-planar (bent over at least 90°).
Could not generate proper streamwise fluctuations on 5 faces!
I'll describe my simulation. Geometrically is quite simple: two square towers, one taller than the other. The taller tower is downstream from the shorter one. I have created two fluid zones: (1) is running in unsteady RANS and (2) is the Embedded LES zone.
Of course, I ran a steady RANS previously to this unsteady simulation.
Because, I have defined profiles for TKE and TKD at the inlet, I only need to initialize synthetic turbulence before running unsteady.
At the LES zone "inlet" I have defined a vortex method dividing the number of cells over 4.
My fluid zone 1 has a "shoe box" shape and zone 2 has the same shape but quite smaller. This gives the 90degrees value between sides of the RANS/LES interface.
How could I tackle this problem? Any suggestions on debugging this?
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