code_saturne User's Forum

Hello,

In your listing file several mesh quality issue has been detected. Viewing the geometry and its dimensions in the listing file you can try to do a 2D mesh and then extrude (using the CS extrude mesh feature in Mesh options) in the z direction.

Best regards,

Luciano

Hello

Yes, the normal stress include the pressure (if i'm not wrong). Also you can check this post may be can help you.

http://code-saturne.org/forum/viewtopic.php?f=2&t=1794

Regards,

Luciano

Hello,

You just have to copy the file (from SRC/REFERENCE or SRC/EXAMPLE) to /SRC in order to be compile during the CS run.

Regards,

Luciano

Hello, By default in CS 5.0 the precisions are the following (you can view in setup.log) epsrgr 1e-05 Gradient reconstruction precision epsrsm 1e-07 Rhs reconstruction precision epsilo 1e-08 Resolution precision (Iterative solver) You can try to change these values using the subroutine usipsu inside...

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...

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

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.
Regards,

Luciano

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...

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.
Regards,

Luciano

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...