code_saturne User's Forum

I try to have 2 meshes and join them. The result is the same. I think that I don't know how to declare the interface again. In the joining sub-menu I choose the 2 BC defined in Salome named "interface_fs" and "interface_sf" respectively the fluid/solid interface (boundary of the ...

Hello Yvan,

I use the group name "interface_fs" which I have defined in Salome.
This interface is the internal fluid/solid interface of the original mesh.
I don't have files in the SRC folder.

I have attached MED file exported from Mesh.

Thank you for your help.

Best regards

Hello, I have add manually the interface fluid/solid with a group name that CS is able to preprocess during mesh calculation, I add the BC directly with its name, not with the face number = 42. This group is not imported with the rest of the BC when importing preprocessor.log of CS. It seems to dete...

I re-run the same 2D case without the solid domain part, only the fluid domain. The simulation runs without problem. My problem comes from the coupling definition in CS. The interface fluid/ solid is internal and after exporting the mesh in MED format I loose the group name of the interface. When I ...

Hello, Thank you for your answers. I have seen before post that the face 42 was not recognize but I don't pay attention to this because in my 3D case it was the same. I was thinking that the coupling between fluid-solid works anyway. I triple check the name of the interface on Salome + paraview and ...

Hello, In order to find the right parameters for a 3D case, first I debug a more simple and well know 2D case "Flow past a cylinder". I use Code Saturne internal coupling for the conjugate heat transfert. My problem is that the simulation doesn't converge, the pressure diverges. See the er...

Hello, I found an example very close to my case to calculate the average scalar quantity on a mesh. void cs_user_extra_operations(cs_domain_t *domain) { /* Variables declaration */ /* Handle to the moy.dat file that will be filled with Tav; declared as static so as to keep its value between calls. *...

Hello Yvan,

Thank you for your answer. I will look for user-functions to do averages on volumes.

Could you answer my question about adaptative time steps please?

Julien

Hello, I use internal coupling for the conjugate heat transfer. I have follow your advice with the initialization with user-function and it works. void cs_user_initialization(cs_domain_t *domain) { const cs_mesh_t *m = domain->mesh; /* If this is restarted computation, do not reinitialize values */ ...

Hello Yvan, Sorry for the lack of information of my previous post The case: To resume, I want to simulation the heating time of a steel cylinder in air forced convection ambiance (at different velocities), the natural convection is neglected. I have already done simulations with CHT OpenFoam solver ...