code_saturne User's Forum

Hi, I'm new to the Code_Saturne 4.0, for now I use it with the GUI. As part of my thesis I would like to use it to simulate air flow on the rough wall with turbulence model k-omega. I have two questions about this:

_ What are the boundary conditions for the k-omega model for the rough wall, I don't find this information on the documation.

_ How to put in inlet condition a matrix containing the value of the speed and z coordinate.

Thanks for any help.

Hello,

For your question regarding a matrix, the best current solution is to use user subroutines (cs_user_boundary_conditions.f90) to define detailed conditions matching your profile (i.e. defining your own interpolation relative to your given profile).
Note that you can define everything using the GUI (for example a flat inlet profile), and then , as a second step, use cs_user_boundary_conditions.f90 to modify the inlet condition and fit it to your profile.

For k-omega documentation, I'll check with colleagues.

Regards,

Yvan