Search found 284 matches
- Wed Dec 23, 2020 3:36 am
- Forum: code_saturne usage
- Topic: Pressure-driven flow for pipe
- Replies: 7
- Views: 3619
Re: Pressure-driven flow for pipe
Hello, The line "call getfbr('2 and x < 0.01', nlelt, lstelt)" is used for the selection of boundary faces satisfying a specific criteria. The criteria is that belongs to a group of face number/color "2" and the coordinates of the face centers x-coordinate "x<0.01". In ...
- Fri Oct 30, 2020 2:08 am
- Forum: code_saturne usage
- Topic: Internal coupling spurious velocity
- Replies: 7
- Views: 4241
Re: Internal coupling spurious velocity
Hello Yvan, Thanks for the suggestion, I will try it. It is like to set a penalization for this term In the solid region. Another workaround that I found is to set the same density in both, fluid and solid, and in order to maintain the volumetric heat capacity in the solid part I have set the heat c...
- Tue Oct 20, 2020 11:57 pm
- Forum: code_saturne usage
- Topic: Internal coupling spurious velocity
- Replies: 7
- Views: 4241
Re: Internal coupling spurious velocity
Hello Yvan, Thanks for your quick reply. I have tried your suggestion but I get the same behavior with some iterations in the velocity field in the solid part. In the setup.log appears the text "Fluid-solid mode (disable dynamics in the solid part)" Regards, Luciano setup.log run_solver.log
- Tue Oct 20, 2020 10:38 pm
- Forum: code_saturne usage
- Topic: Internal coupling spurious velocity
- Replies: 7
- Views: 4241
Internal coupling spurious velocity
Hello, I'm running in CS 6.0.4 a simple example using the internal coupling feature, but when setting different densities (rho_air=1, rho_solid=100) spurious velocities appears at the solid region as seen in the picture. The densities and temperature are constant and the gravity is turned on. If gra...
- Sat Oct 03, 2020 3:26 am
- Forum: code_saturne usage
- Topic: LES with conjugate heat transfer
- Replies: 7
- Views: 3494
Re: LES with conjugate heat transfer
Hello,
I did a test in a small case using CS 6.0.4 and the temperature field in celsius. I used LES dyn model restarting from K-omega SST and I don't get this behaviour in the temperature iterations. Maybe it was a bug that was fixed in the subsequent versions.
Regards,
Luciano
I did a test in a small case using CS 6.0.4 and the temperature field in celsius. I used LES dyn model restarting from K-omega SST and I don't get this behaviour in the temperature iterations. Maybe it was a bug that was fixed in the subsequent versions.
Regards,
Luciano
- Wed Aug 19, 2020 4:25 am
- Forum: code_saturne usage
- Topic: Different convective schemes for different zones
- Replies: 8
- Views: 5255
Re: Different convective schemes for different zones
Hello Ok, but setting different blencv in your domain you are mixing first and second order schemes. May be the ischcv = 3 ( Blending between Second Order Linear Upwind and Centered scheme) is what you need, because your will be using two second order schemes and the unphysical oscillations can be r...
- Tue Aug 18, 2020 4:11 pm
- Forum: code_saturne usage
- Topic: Different convective schemes for different zones
- Replies: 8
- Views: 5255
Re: Different convective schemes for different zones
Hello,
Did you try with another convective scheme like SOLU (ischcv). Also, you can set different limiters (isstpc)
Regards,
Luciano
Did you try with another convective scheme like SOLU (ischcv). Also, you can set different limiters (isstpc)
Regards,
Luciano
- Fri Jun 12, 2020 2:33 am
- Forum: code_saturne usage
- Topic: Store surface normal vector to array in parallel simulation
- Replies: 4
- Views: 3368
Re: Store surface normal vector to array in parallel simulation
Hello, I think that before call cs_parall_allgather_r() you have to do a parallel sum (parcpt) in order to sum "nlelt1" to get the total "n_g_elts". After you get "n_g_elts" you can call to cs_parall_allgather_r() Let me know if I'm right, because I never use it in CS, ...
- Mon Jun 08, 2020 9:54 pm
- Forum: code_saturne usage
- Topic: Store surface normal vector to array in parallel simulation
- Replies: 4
- Views: 3368
Re: Store surface normal vector to array in parallel simulation
Hello, After partitioning the mesh each process will have a portion or not of the boundary WALL1, so each process has to create a local array and then you need to join all these array with a mpi gather. You can take a look to the file cs_user_extra_operations-parallel_operations.f90 in the example d...
- Sun May 17, 2020 11:32 pm
- Forum: code_saturne usage
- Topic: Using fans definitions
- Replies: 1
- Views: 4131
Re: Using fans definitions
Hello,
You can check the Doxygen documentation
https://www.code-saturne.org/cms/sites/ ... an_8c.html
and also this old post
viewtopic.php?f=2&t=1831&start=10
Regards,
Luciano
You can check the Doxygen documentation
https://www.code-saturne.org/cms/sites/ ... an_8c.html
and also this old post
viewtopic.php?f=2&t=1831&start=10
Regards,
Luciano