Search found 280 matches

by Luciano Garelli
Mon Jun 26, 2017 11:08 pm
Forum: code_saturne usage
Topic: Convergence, windtunnel with obstacle
Replies: 5
Views: 2907

Re: Convergence, windtunnel with obstacle

Hello, The problem that you want to simulate is a 3D problem and you are solving a "2D" (only 1 cell in the z-axis), this will change the flow around the cube. Additionally, the paper mention that the copper cube is cover with a epoxy layer of 1.5 mm and at its interior surface, a constant...
by Luciano Garelli
Mon Jun 26, 2017 10:30 pm
Forum: code_saturne usage
Topic: Mesh version problem
Replies: 2
Views: 1886

Re: Mesh version problem

Hello,

I'm not sure..but I think that when you export the mesh in CGNS the names of the face groups are changed. So, you can do first a mesh preprocessing in order to identify the new group names in the preprocessing.log file and then update the names in the BC definition.

Regards,

Luciano
by Luciano Garelli
Sun Jun 25, 2017 3:32 pm
Forum: code_saturne usage
Topic: Problem of verifying the quality of the mesh in CS 5.0
Replies: 5
Views: 4197

Re: Problem of verifying the quality of the mesh in CS 5.0

Hello,
The file that you have to read in order to load the BC's is the preprocessor.log as the pop-up notifications says.
preprocessor.png
Regards,

Luciano
by Luciano Garelli
Fri Jun 23, 2017 4:37 pm
Forum: code_saturne usage
Topic: Crank-Nicolson
Replies: 5
Views: 2809

Re: Crank-Nicolson

Hello, The option to change the time stepping scheme is "ischtp", the doxygen doc says that ischtp=1 is 1st order (default) and ischtp=2: 2nd order. I think that you can set it using the subroutine usipsu in the cs_user_parameters.f90 by setting ischtp=2. Also, if ischtp=2 the code set the...
by Luciano Garelli
Fri Jun 23, 2017 4:12 pm
Forum: code_saturne usage
Topic: Problem of verifying the quality of the mesh in CS 5.0
Replies: 5
Views: 4197

Re: Problem of verifying the quality of the mesh in CS 5.0

Hello,

In CS 5 you have to switch to the "prepocessing mode" (in the fig that you post you are in the "calculation mode") and then select "mesh quality criteria" in the preprocessing type.
mesh_quality.jpg
Regards,

Luciano
by Luciano Garelli
Wed Jun 14, 2017 2:31 pm
Forum: code_saturne usage
Topic: How to plot residuals in Windows?
Replies: 34
Views: 15867

Re: How to plot residuals in Windows?

Hello, From yours xml files I saw that you are running 16000 iterations using a variable time step in space and in time with CFD=1 and Fo=10, so if you refine the mesh the, solution that you are showing in the last two figures doesn't correspond to the same "instant", because you change th...
by Luciano Garelli
Tue Jun 13, 2017 2:48 pm
Forum: code_saturne usage
Topic: Number of processors
Replies: 8
Views: 4087

Re: Number of processors

Hello,

No idea about the error. Could you post the config.log in order to get more information about the error and the configure process.

Regards,

Luciano
by Luciano Garelli
Mon Jun 12, 2017 4:42 pm
Forum: code_saturne usage
Topic: Number of processors
Replies: 8
Views: 4087

Re: Number of processors

Hello,

In Section 6.5 of the install guide you can get additional information about MPI. Also, you can check and post the config.log in order to get detailed information about the error message.

Did you try to run a parallel helloworld?

Regards,

Luciano
by Luciano Garelli
Mon May 29, 2017 8:08 am
Forum: Installation issues
Topic: Problem with a tutorial
Replies: 20
Views: 15262

Re: Problem with a tutorial

No, the file needed is the "listing", attach this file.

Luciano
by Luciano Garelli
Sat May 27, 2017 12:39 pm
Forum: Installation issues
Topic: Problem with a tutorial
Replies: 20
Views: 15262

Re: Problem with a tutorial

Hello,

As the message says, "Check Code_Saturne log (listing) and error* files for details". Check the listing file in the RESU directory in order to have more details about the error.

Regards,

Luciano