code_saturne User's Forum

Ivan ,
SST is more precise in near-wall region than any other RANS with wall functions, so if you need detailed heat exchange, SST is usually adviced. Even CFX with it's adaptive and well-tested wall functions does not give acceptable precision on tube bundle case. I needed to switch to SST and ...

saintlyknighted
Please note that Saturne has limited joining (coupling) functionality for now. It will not process relatively complex cases with different mesh scales at interface sides. Especially with curvilinear interfaces. So use conformal interface mesh when possible. Ideal case is a single ...

OK, thanks for your attention. I created the issue on GitHub.
https://github.com/code-saturne/code_saturne/issues/152

Thanks for the fast reply!
I attached the listing but it have not uploaded for some reason.
Saturne vesrions tested: 8.0.4, 8.3.0, 8.3.2.
MPI: 1.8.4 (my stable favorite)
CentOS: 7.5
Particles are 7-fraction ash (3.5...175 mkm). Average gas velocity is roughly at level 15 m/s.

I made special tests ...

Hello. I face the strange problem with particle statistics. The case is a simple gas duct with inlet, common outlet and particle outlet. Unless there is no particle statistics collected all things are fine. Gas phase calculation is OK, particles are released and fill the domain, I can visualise them ...

Thanks for your info. Joining and outlet extrusion are indeed the cases for in-solver mesh modifications. Parallel layer insertion is very useful because it's very time-consuming in serial mode. Regarding layers compression, I always use this option in Ansys Meshing - no problems. Main culprit with ...

Hello. It looks strange. As I know, inner iterations are used to stabilize linear system coefficients because they depend on variables solved (velocity, temperature, composition). So, in dynamic approach, inner iterations a always required. In static cases there is no reason for accurate ...

Sorry, as I can see, he asks how to switch to transient case (with inner iterations on each timestep) using time stepping options in GUI. Something like Constant time step + Inner iterations.

Hello. Thanks for your info. Built-in inflation is cool! AFAIK, it's unique to Saturne. Will wait until it appears in GUI for more convenient use.
Generally speaking, built-in mesher is another complex task. Here we come to a complete set of geometry import, meshing, preprocessor and solver, as for ...

Hello, thanks for your info. Hope there will be more settings in your new XML and solver control approach. It's fine that Saturne keeps developing unlike almost all other software (I mean real development, not version number change or killing interface with black and white "flatness").
Maybe some ...