code_saturne User's Forum

Hello,

The set of values (aexxst, bexxst, cfopre, dtstr, alpnmk, betnmk, gamnmk). By changing dtstr for fixed values of the other parameters, I indeed get different frequencies of the structures displacement from the internal coupling.

Thanks in advance.

Regards,

So_nuc

Hello, I have included the use of alstru module in the "cs_user_paramters.f90" file. However, the structure displacement depends on the structure time step used within the internal coupling. Would you require a specific set of values to get accurate results ? Thanks in advance. Regards, So...

Hello, Thank you for your reply. I meant that there only seems to have the details of the numerical scheme for the predicted displacement and forces driven by the coefficients aexxst, bexst and cfopre (on the file example "cs_user_fluid_structure_interaction.f90"). Then, how to handle the ...

Hello, I am dealing with FSI calculations with Code_Saturne through an internal code coupling. The code uses as mentioned in the documentation a Newmark-HHT algorithm to determine the structure displacement. However, it seems to have no information about the numerical scheme to calculate the structu...

Hello Yvan,

Thank you very much for your fast reply and your help ! It indeed works with a greater time step value: the Courant number at a reference time step equalled about 1E-5 before and now equals about 1E-4.

Thanks again and have a nice day.

Best regards,

So_nuc

Hello, I am dealing with a 1D mesh in a duct filled with a fluid governed by Pressure BCs at the left side and the right side of the geometry (see the pictures). Top and Bottom boundaries are moving in the (OY) direction with an oscillatory imposed displacement. In this context, the simulations are ...

Hello, WIthin an ALE Simulation in Code_Saturne (v5.0.8), both "Mesh displacement" and "déplacement" are displayed in the postprocessing med file but they contain actually the same values (since they are the same field). How is it possible to remove one of them by means of the cs...

Hello Yvan,

Do you have any suggestion of the problem encountered with the field displacement within an IFS calculation please ? I have enclosed herein some pictures of the displacement field.

Thank you in advance.

Regards,

So_nuc

Hello,

Some screenshots have been attached here to see how weird the mesh displacement interpolation behaves.

Regards,

So_nuc

Hello, The call to the displacement field via call field_get_val_prev_v_by_name("disale",cvar_disale_prev) seems to have a weird beahviour. As depicted in the pictures, I imposed a linear interpolation of the parallel component of the fields displacement between the bottom and top boundari...