Search found 10 matches

by spal
Sat Mar 18, 2017 8:36 pm
Forum: code_saturne usage
Topic: Equation convergence tolerance in Code Saturne
Replies: 1
Views: 2845

Equation convergence tolerance in Code Saturne

I read through the documentation and it appears that the residuals are based on sum of squares of cell residuals over the entire domain. With regards to ensuring that the user specified tolerance for each equation is met, how is the global residual value scaled before comparison to the user specifie...
by spal
Sat Mar 18, 2017 8:31 pm
Forum: code_saturne usage
Topic: Post-processed stresses, normal stress, and shear stresses
Replies: 0
Views: 30265

Post-processed stresses, normal stress, and shear stresses

I have the stress, normal stress and shear stress written out in Ensight format for each time step in a run. I had a question with regards to the these
** Does the normal stress include the pressure term in it
** How is the stress file different from the shear stress output file ?
by spal
Sat Mar 18, 2017 8:27 pm
Forum: Installation issues
Topic: Removing old installation of code Saturne before rebuild
Replies: 1
Views: 3073

Removing old installation of code Saturne before rebuild

What steps do I need to take to remove old Ubuntu provided installation of code Saturne and install new version that I will build ?

Also, when is version 5.0 expected to be released ?
by spal
Wed Mar 15, 2017 4:07 am
Forum: code_saturne usage
Topic: Calculating drag and lift on cylinder with cs_user subroutin
Replies: 9
Views: 7562

Re: Calculating drag and lift on cylinder with cs_user subro

I will rebuild the code later. For now I will calculate using the ensight format wall stresses that were written out.If I need to restart the run for a few more shedding I cycles, I assume I can restart from the checkpoint file. I had one question regarding the stresses, do the two of the three wall...
by spal
Tue Mar 14, 2017 12:55 am
Forum: code_saturne usage
Topic: Calculating drag and lift on cylinder with cs_user subroutin
Replies: 9
Views: 7562

Re: Calculating drag and lift on cylinder with cs_user subro

I am running on Ubuntu 16. I did not build the code though I intended to build it initially.

The code was installed using the ubuntu package manager. I had open-mpi, python and Java installed prior to getting code Saturne.
by spal
Mon Mar 13, 2017 5:25 am
Forum: code_saturne usage
Topic: Values reported for user specified monitoring points
Replies: 1
Views: 1941

Values reported for user specified monitoring points

When we define user specified monitoring points to print out values what does code Saturne do for interpolation ? Does it print out the nearest cell center value or does it interpolate the value to the monitoring point ?
by spal
Mon Mar 13, 2017 5:22 am
Forum: code_saturne usage
Topic: Calculating drag and lift on cylinder with cs_user subroutin
Replies: 9
Views: 7562

Re: Calculating drag and lift on cylinder with cs_user subro

Yvan,

For some reason I do not even get into the subroutine. I am running the code from the GUI ? The subroutine compiles and links. The file is not even created in the temporary_run directory.

Am I missing something ? I tried both a serial and multiprocessor run.
by spal
Thu Feb 23, 2017 6:57 am
Forum: code_saturne usage
Topic: Calculating drag and lift on cylinder with cs_user subroutin
Replies: 9
Views: 7562

Re: Calculating drag and lift on cylinder with cs_user subro

I would like to know the changes needed to make to have it run in parallel.
by spal
Thu Feb 23, 2017 5:13 am
Forum: code_saturne usage
Topic: Calculating drag and lift on cylinder with cs_user subroutin
Replies: 9
Views: 7562

Re: Calculating drag and lift on cylinder with cs_user subro

Yes, I did turn it on in the GUI. I get stresses written out at the end of every time step. So based on what you are say, this should work in serial. I was running with four processors.
by spal
Sun Feb 19, 2017 3:04 am
Forum: code_saturne usage
Topic: Calculating drag and lift on cylinder with cs_user subroutin
Replies: 9
Views: 7562

Calculating drag and lift on cylinder with cs_user subroutin

I am using the following subroutine with version 4.2. I put the file in SRC directory. It compiles but does not write out anything in the temporary directories. Is this subroutine the right one to use in version 4.2 ? !------------------------------------------------------------------------------- !...