code_saturne User's Forum

Hello, As Yvan mentioned, you can change the time step factor (cdtvar) for the temperature to have similar characteristics times to reach a steady solution in case it exists. In the following figure, you can see the difference in the temperature field for the same simulation time, while the velocity...

Hello Lorenzo, I checked and ran your case with CS 7.0.4. The time step discretization in your setup was set to steady, but in this situation the regime is transient. The simulation now runs with a time step of 1e-4 s (Co max ~ 2.5) after the change. It is accurate to say that the maximum fluid velo...

Hello,

Did you check the user example.?

https://www.code-saturne.org/documenta ... tion.html

Regards,
Luciano

Hello Yvan, Attached it is a very simple case (1D) with the comparison of the cell gradient reconstruction for the temperature. The J fields are the thermal fluxes and the Grad fields are the gradients. Additionally, in this case, with different thermal conductivities in the domain, the thermal flux...

Hello Yvan,

I have implemented inside the extra_operation.c function, but I will prepare a small test case with the gradient reconstruction using this equation and I will share for your analysis.

Regards,
Luciano

Hello Yvan, thanks for your answer. Yes, both lead to the same issue. In discussions with colleagues at the institute, two options emerged...one was to obtain the potential face value using the fluxes and then compute the gradients based on this face value and the local conductivity. This option wor...

Hello, I am facing a problem when computing the gradient of a scalar field with a variable physical property (conductivity) in the domain. Using the cs_field_gradient_scalar() I can compute the correct gradient in the domain, but in the cells in the interface between different properties, where a di...

Hello, I have faced the same issue as you in one of our clusters with CS 6. I think that the problem is during the writing of the restart files. The solution that I found was to change the input/output method, from default to serial I/O. Captura de pantalla de 2021-12-09 09-16-31.png Regards, Luciano

Hello,

In order to solve a FSI simulation, you have to couple Code Saturne(fluid-mesh movement) and Code Aster(Solid). This coupling (by the moment) is not straightforward.

Regards,
Luciano

Hello, Do you need to solve a fluid-structure interaction problem? or Will you impose de mesh deformation? The Internal Coupling option does not solve the elasticity equations. Also, you can post the log file in order to help you with the error. Please check the Code_Saturne usage forum guidelines p...