inviscid or viscous wall condition

[attene]

Hi everybody,

I am a new user and setting up my first job with code saturne (vesion 5.0.4 ) using the turbomachinery module implemented in the GUI.

My case is made up of two meshes (Cylindrical domain containing a horizontal axis tidal turbine and a rectangular section tank) which I joined and not coupled.
For the moment I am interested in a steady simulation which I imposed as condition under Thermophisical models.
Through the turbomachinery model I imposed three face joining and a rotational velocity for the cell zone corresponding to the cylinder.
The turbulence model chosen is k-w SST.

At the moment my "problem" is related to the boundary condition: I would like to have inviscid walls for tank boundaries and HUB and viscous walls for the three blades. I can see my choice is between smooth and rough wall!
Does smooth meen inviscid?
Does rough meen viscous?
Can I assign both viscous and inviscid wall condition by using a turbulence model or all walls are automatic seen as viscous?

Thank you in advance!

Regards,

FA

[Yvan Fournier]

Hello,

Smooth walls are viscid. Inviscid walls would be a symmetry condition.

Regards,

Yvan

[attene]

THANKS!