[rightnow]

Hi all I am a new user to OpenFOAM and I am trying to simulate flow in a cyclone device. This device is schematically shown in the first attached image. I have poor result of the simulation with the following settings:
1. solver - simpleFoam
2. mesh - tetrahedral, ~200 000 elements (geometry - Salome, mesh - Netgen)
3. turbulence model - kEpsilon, kOmegaSST
4.boundary conditions, fvSchemes, fvSolutions, yPlusRAS.log, checkMesh.log in attach *tar.gz file.
5. wall functions disabled because y+ <1

6. I using for first 50 iterations schemes first order (Gauss upwind), for next iterations - Gauss linearUpwind SquareLeast. I also tried to use potentialFoam.
Resuls of this simulation (shown in the second attached image) don't agree with the experimental setup finding (tangential velocity of the entire height of the device on average equal to 25-40 m / s).
How can I improve the simulation results?
Regards.