Search found 4082 matches

by Yvan Fournier
Mon Dec 08, 2014 10:45 am
Forum: code_saturne usage
Topic: How to control the interval of checkpoint
Replies: 8
Views: 4189

Re: How to control the interval of checkpoint

Hello,

The auto_restart example is for a different use (updating the number of time steps for a restarted calculation, without otherwise changing the calculation options).

Did you check the GUI start/restart section ?

Regards,

Yvan
by Yvan Fournier
Fri Dec 05, 2014 3:26 pm
Forum: code_saturne usage
Topic: CS 4.0b - Output control strange behavior
Replies: 8
Views: 3684

Re: CS 4.0b - Output control strange behavior

Hello Pablo,

I'll probably be uploading a new 4.0 beta later today, with some fixes relative to combustion, so you may want to wait a bit before reinstalling...

Regards,

Yvan
by Yvan Fournier
Thu Dec 04, 2014 2:44 am
Forum: code_saturne usage
Topic: CS 4.0b - Output control strange behavior
Replies: 8
Views: 3684

Re: CS 4.0b - Output control strange behavior

Hello,

Im am not able to reproduce your bug: I built an xml file based on yours, on a simple cavity, adapting only the boundary conditions to my mesh, and obtained 40 time steps, not 20...

Do you have any user subroutines ?

Regards,

Yvan
by Yvan Fournier
Wed Dec 03, 2014 3:21 pm
Forum: code_saturne usage
Topic: CS 4.0b - Output control strange behavior
Replies: 8
Views: 3684

Re: CS 4.0b - Output control strange behavior

Hello,

Do you still have the issue with 200 time steps ? (maybe the problem was due to some partial update) ? If it still fails, could you post the listing for the case that fails ?

Regards,

Yvan
by Yvan Fournier
Wed Dec 03, 2014 1:45 pm
Forum: code_saturne usage
Topic: CS 4.0b - Output control strange behavior
Replies: 8
Views: 3684

Re: CS 4.0b - Output control strange behavior

Hello,

This is strange; I just ran a similar test on my side, and did not encounter this issue (I ran 40 steps for a steady calculation, output every 5 time steps, and obtained 8 output records).

Could you also post your listing file, as it has a summary of writer parameters. ?

Regards,

Yvan
by Yvan Fournier
Tue Dec 02, 2014 5:15 pm
Forum: code_saturne usage
Topic: Fatal error
Replies: 5
Views: 3600

Re: Fatal error

Hello, OK, thanks for the info. Did you use any user subroutines in your case ? A quick test on a virtual machine some time ago on my side seemed to fail, due to the Ubuntu packing mixing compile options from the 32 and 64 bit variants (the upstream Debian package does not have this issue, and the u...
by Yvan Fournier
Tue Dec 02, 2014 5:12 pm
Forum: code_saturne usage
Topic: how to setup periodic temperature for an LES of a cuboid
Replies: 14
Views: 5966

Re: how to setup periodic temperature for an LES of a cuboid

Hello, As an example, I attach a cs_user_source_terms.f90 (for 4.0 beta) for Kawamura LES from our own test suite (unfortunately, we cannot publish the whole test suite, as some cases are confidential, and others may use data which we cannot redistribute). ustsnv si used for the velocity source term...
by Yvan Fournier
Sat Nov 29, 2014 3:31 am
Forum: code_saturne usage
Topic: Pulverized coal and slagging TUTORIAL
Replies: 30
Views: 21607

Re: Troubles with Pulverized coal and slagging TUTORIAL

Hello, 1) Actually, this is an accumulation in stativ(iel,ildck), which accumulates tepa(npt,jrpoi)*tepa(npt,jrdck)*tepa(npt,jrdck) (statistical weight + shrinking diameter**2) at each time step. This is probably divided in lagsta for a final result. 2) I'll need to check. If you can't find "il...
by Yvan Fournier
Sat Nov 29, 2014 3:14 am
Forum: code_saturne usage
Topic: Fatal error
Replies: 5
Views: 3600

Re: Fatal error

Hello, It seems your MPI IO is buggy on that machine. Your solution is correct. You could also configure Code_Saturne with the --disable-mpi-io option when installing it so you do not need to change the I/O option for each new computation. What Linux distribution and MPI library are you using ? Rega...
by Yvan Fournier
Sat Nov 29, 2014 3:12 am
Forum: code_saturne usage
Topic: Compressible flow inlet not matching boundary conditions
Replies: 10
Views: 7704

Re: Compressible flow inlet not matching boundary conditions

Hello,

No one has had this issue before to my knowledge.

If you do not provide details as per the forum recommendations, and explain by how much your conditions differ from what you expect, it will be hard to say more.

Regards,

Yvan