Search found 5 matches

by sophie Lu
Wed Sep 03, 2025 5:25 pm
Forum: code_saturne usage
Topic: Symmetric Gauss-Seidel error
Replies: 1
Views: 3922

Symmetric Gauss-Seidel error

Hi all,

I am running an atmospheric simulation, but it stops every time when it reaches around 360 time steps (time step is 1s in my case), due to this problem:

Symmetric Gauss-Seidel [Velocity]: divergence after 1 iterations:
initial residual: -nan; current residual: -nan

Symmetric Gauss ...
by sophie Lu
Mon Aug 11, 2025 6:25 pm
Forum: code_saturne usage
Topic: MESH of complex geometry
Replies: 3
Views: 48644

Re: MESH of complex geometry

Hi Louis,

Thanks for your reply. I want to generate multiple buildings and do some simulation about air pollution. I am using geometry and my MESH can be generated by using NETGEN 1D-2D-3D, but the model always said mesh quality is not good. I know its better to generate the mesh as hexahedral, but ...
by sophie Lu
Tue Jul 22, 2025 11:30 pm
Forum: code_saturne usage
Topic: MESH of complex geometry
Replies: 3
Views: 48644

MESH of complex geometry

Hello,

I want to process complex urban ground as a MESH simulation. Now I have generate MESH of buildings successfully from DSM file. In this case, how can I extract the air area above the city? I have tried to generated a box that can cover the buildings and do Boolean cut, but it always warning ...
by sophie Lu
Mon Jun 09, 2025 8:50 pm
Forum: code_saturne usage
Topic: SIGSEGV signal issue
Replies: 1
Views: 6557

SIGSEGV signal issue

Hi all,

I am trying to run code_saturne 7.0.2 with ssh-aerosol model, but I always got the error like this:

Hydrostatic pressure computation:
updating the Dirichlets at the end (CALHYD)

SIGSEGV signal (forbidden memory area access) intercepted!

Call stack:
1: 0x70d38425d704 <cs_turbulence_ke ...
by sophie Lu
Mon Jun 09, 2025 8:47 pm
Forum: code_saturne usage
Topic: code_saturne with ssh-aerosol
Replies: 0
Views: 8742

code_saturne with ssh-aerosol

Hi all,

I am working on code_saturne coupling with the ssh-aerosol model. Is there any example for test case?

Thanks,
Sophie