code_saturne User's Forum

Okay, that makes sense. It sounds like a divergence-free version would be beneficial.

Hi all,

I am trying to find a reference for the current implementation of the synthetic eddy method. I am aware of the 2006 paper by Jarrin et al., but I was wondering if the current implementation uses a more advanced version, perhaps one that is divergence-free.

Best wishes,
Matthew

Hi,

I have been running pipe flow simulations to better understand the causes of mesh artefacts that can occur in LES simulations. Similar to mesh artefacts previously posted on this forum, this is a time-step issue, with the implication being that this is related to the Rhie-Chow interpolation, as ...

Hi,

I am using ICEM CFD for mesh generation exporting it to Code_Saturne 6.0.5 via CGNS. I have constructed a quarter model of the domain and used ICEM to mirror the mesh in two directions to create the full domain. Necessarily the surfaces on the interface between the mirrored components contained ...

Just a further update, I corrected part of the subroutine and it seems to work for the first iteration, but the same error returns on iteration 2. I think this is because on the first iteration the variable (Turbulent Kinetic Energy) is 0, but as soon as the variable becomes non zero on iteration 2 ...

I'm try to use the gradient_s subroutine to find the gradient of a user defined scalar, however I get an error 'Forbidden memory access intercepted' but I'm not sure which part of it is causing it. There are quite a few terms so I may have misinterpreted some of them. If there are other ...

Thanks for the reply, I found out how to select faces rather than nodes in ICEM CFD when the mesh is output. That fixed my problem without the need for cs_user_zones.c.

Due to a repeat of this issue that I don't seem to be able to circumvent by regrouping the BCs, I've tried to use the cs_user_zones.c routine (from line 82 in attachment) basing it on one of the examples however it didn't seem to work and I still have the same problem. I just have a few questions ...

Thanks for the reply, I've managed to solve this particular issue just by redefining some boundary conditions to prevent overlapping.

Best regards
Matthew

I am producing a mesh on iCEM CFD, exporting via cgns. This usually works fine however on this occasion I am getting an issue which states that some faces belong to multiple boundary conditions, although on ICEM CFD I cannot see a problem. The error states that you can allow boundary faces to ...