Search found 18 matches
- Thu Sep 14, 2017 3:49 pm
- Forum: code_saturne usage
- Topic: Noisy pressure distribution
- Replies: 1
- Views: 1427
Noisy pressure distribution
Hello all, I am trying to use the SSG RSM to simulate flow in a rod bundle geometry where the pins distort . The mesh in this domain contains tetrahedrals. I have managed to obtain a converged solution but when visualising the pressure field, it looks rather noisy (please see attached picture). This...
- Fri Aug 25, 2017 12:07 pm
- Forum: code_saturne usage
- Topic: Code_Saturne4.0.8 results cannot be read or restarted
- Replies: 2
- Views: 1972
Re: Code_Saturne4.0.8 results cannot be read or restarted
Hi Yvan, Thank you for replying. The issue appears to have been linked to the method I used to install code_saturne. Initially I was installing code_saturne with the automatic installer. The installation appeared to progress correctly. But results generated by that installation, could not be read in...
- Thu Aug 24, 2017 1:22 pm
- Forum: code_saturne usage
- Topic: Code_Saturne4.0.8 results cannot be read or restarted
- Replies: 2
- Views: 1972
Code_Saturne4.0.8 results cannot be read or restarted
Hi all, I have recently reinstalled Code_Saturne 4.0.8 with PT_Scotch support(6.0.4). When I ran a simulation with a mesh density of 22 million the results produced by the installation could not be read. Trying to restart the calculation i get the following error. SIGSEGV signal (forbidden memory ar...
- Fri Jun 09, 2017 12:45 pm
- Forum: code_saturne usage
- Topic: Code saturne performance on HPC
- Replies: 1
- Views: 1639
Re: Code saturne performance on HPC
Apologies, just noticed performance.txt was not attached.
- Fri Jun 09, 2017 12:42 pm
- Forum: code_saturne usage
- Topic: Code saturne performance on HPC
- Replies: 1
- Views: 1639
Code saturne performance on HPC
Hi, I wanted to ask about he performance of Code saturne in parallel. On my local HPC cluster it appears as I increase my mesh density and the number of processors used (trying to maintain a cell/processor ratio of approximately 90000), the time for each iteration drastically increases. With a mesh ...
- Tue Feb 21, 2017 4:04 pm
- Forum: code_saturne usage
- Topic: reduce number of cells being flagged as offset
- Replies: 5
- Views: 3344
Re: reduce number of cells being flagged as offset
many thanks for your help. One more quick question if you don't mind. Is there any particular reason why CS 4.0.6 is returning a different percentage for the offset criterion?
Regards,
Kenneth
Regards,
Kenneth
- Mon Feb 20, 2017 6:35 pm
- Forum: code_saturne usage
- Topic: reduce number of cells being flagged as offset
- Replies: 5
- Views: 3344
Re: reduce number of cells being flagged as offset
Thank you for the reply, the answer to your first question is yes, it appears the internal mesh is fully tetrahedral. I performed the check by creating the group of all tetrahedral elements inside the mesh. Refining the tetramesh inadvertently refines hexahedral mesh and thus does not seem to improv...
- Mon Feb 20, 2017 11:59 am
- Forum: code_saturne usage
- Topic: reduce number of cells being flagged as offset
- Replies: 5
- Views: 3344
reduce number of cells being flagged as offset
Hi, In my mesh I have an appreciable number of cells which are being flagged as offset. Visualising the check mesh result it appears the reason is due to the pyramid cells which act as a transition between the hexahedral near wall mesh to the fully tetrahedral internal domain. I wanted to ask for so...