code_saturne User's Forum

Hello, These are new functions in version 5.0. They did not exist in version 4.0, so you need either to adapt the code from src/base/cs_post_util.c in version 5.0 to your user functions, or upgrade to version 5.0. I recommend 5.0. Best regards, Yvan Hello Yvan, Thanks a lot. I have installed versio...

Hello, Ys, you are correct. I had forgotten about the recent additions of "utility" functions found in src/examples/cs_user_extra_operations-turbomachinery.c, also described here: http://code-saturne.org/doxygen/src/turbomachinery.html . The moment of force should be exactly what you need...

Hello, We need to add a function to do this, but in the meantime, you should activate postprocessing output of boundary stresses. You can the integrate the torque based on those stresses either by looping over selected faces in the cs_user_extra_operations user function, or in a separate postproces...

Hello, You can define an inlet (possibly with a given profile) upstream of the turbine, and use symmetry (or free -inlet-outlet conditions) on the sides, with an outlet (or free inlet-outlet) downstream. We do not have any specific "far-field" boundary type. Regards, Yvan Hi Yvan, Thank y...

Hello, We need to add a function to do this, but in the meantime, you should activate postprocessing output of boundary stresses. You can the integrate the torque based on those stresses either by looping over selected faces in the cs_user_extra_operations user function, or in a separate postproces...

Hello Everyone，
I' m working on the simulation of wind turbine and I need to monitor the torque(moment) coefficient of one blade to the central axis in every time step. How can I achieve that in code_saturne? Thank you.

Yany.

Hello everyone,

Hope you are doing well.

I found that in code_saturne GUI there is no far-field boundary condition choice. But I need that in simulation of a wind turbine. Is it possible to achieve that in code Saturne? Thank you.

Yan.

Yvan Fournier wrote:Hello,

If do you join rotor/stator interface faces in the preprocessing stage, they cannot be "disjoint" at the beginnig of the rotation steps.

Regards,

Yvan

Hi Yvan，

Many thanks for your suggestion. Now it works!

Yan.

Hello, The faces must be disjoint (i.e. not already connected) in the initial mesh. Regards, Yvan Thanks for your reply ,Yvan. I made two different mesh, rotor and stator. The joining face are"interface 1" and "interface2". In the first import mesh step. I choose all[] at the jo...

Hello everyone, I'm now working on the simulation of wind turbine using turbomachinery module. but when I ran the case, there is an erro: Check_geometry: some faces of the initial mesh belong to different rotor/stator sections. These sections must be initially disjoint to rotate freely. I think ther...