Search found 10 matches

by trijonb
Sat Mar 23, 2024 7:55 am
Forum: CfdOF / CFD
Topic: CfdOF/FreeCAD 0.21.2 Generates incorrect Periodic B.C's
Replies: 2
Views: 284

Re: CfdOF/FreeCAD 0.21.2 Generates incorrect Periodic B.C's

hi, can you post your case? I remember working on the basics of this but dont remember completing it.
Otherwise, log an issue on Github with more info.

https://github.com/jaheyns/CfdOF
by trijonb
Thu Jul 14, 2022 12:26 pm
Forum: CfdOF / CFD
Topic: unit of U in paraviewer?
Replies: 8
Views: 2561

Re: unit of U in paraviewer?

r.tec wrote: Wed Jul 13, 2022 4:15 pm But I do not know what the flash-like artefacts are and where they come from. Not nice but no influence on the results.
These look like processor patches (ie results processed on a decomposed mesh). Looks like you may have used np=4?
by trijonb
Thu May 26, 2022 3:31 am
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 421
Views: 165258

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

I got almost exactly the same behaviour (after remeshing with gsmh (tets and poly's)). Inviscid, viscous laminar, viscous k-omega, with multiple combinations of URF's, as well as very low values, and got the same divergence in the pressure residual. Assumed it was either BC's or a mesh problem. Inci...
by trijonb
Mon May 23, 2022 9:31 am
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 421
Views: 165258

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

Hi Michael,

Check your mesh, this is what it looks like currently (from your provided case).
mesh.png
mesh.png (210.91 KiB) Viewed 1918 times
Regards
Jon
by trijonb
Fri May 06, 2022 5:44 am
Forum: CfdOF / CFD
Topic: A new series of 10 tutorials about Freecad CfdOf
Replies: 39
Views: 62083

Re: A new series of 10 tutorials about Freecad CfdOf

Well done, these are really great.
by trijonb
Thu Apr 21, 2022 11:05 am
Forum: CfdOF / CFD
Topic: [solved] CAARC building, cfmesh error
Replies: 9
Views: 3161

Re: CAARC building, help needed

"cfMesh-CfdOF (cfMesh 1.1.2) 1.12"

I'm using ESI's cross compilation version though
by trijonb
Thu Apr 21, 2022 10:06 am
Forum: CfdOF / CFD
Topic: [solved] CAARC building, cfmesh error
Replies: 9
Views: 3161

Re: CAARC building, help needed

I gave this a try, and didn't seem to have an issue (meshing or solving) - although the meshing (with cfMesh) did take quite a long time, and was quite memory intensive. Unless its something to do with v0.20, did you perhaps run out of memory? OS: Windows 10 Version 2009 Word size of OS: 64-bit Word...
by trijonb
Thu Apr 07, 2022 1:26 pm
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 421
Views: 165258

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

thschrader wrote: Sun Apr 03, 2022 12:22 pm 8-)
Thanks for this add.
checkmesh.JPG
:thumbsup
by trijonb
Sun Mar 27, 2022 3:54 am
Forum: Developers corner
Topic: Cannot use subfolders ("python modules") in FreeCAD workbench
Replies: 1
Views: 811

Cannot use subfolders ("python modules") in FreeCAD workbench

hi there, I hope you are well. I am new to FreeCad dev but an existing Python developer. I've been playing with setting up a new module (FC workbench) but using traditional Python module structures does not seem to work with FreeCAD - i get a exception quite far down the stacktrace when trying to im...
by trijonb
Mon May 24, 2021 1:15 am
Forum: Open discussion
Topic: Air Plane Design Workbench - discussion thread
Replies: 44
Views: 14036

Re: Air Plane Design Workbench - discussion thread

hi there, I am new to FreeCad, having used things like ProEngineer and SW in the distant past. I have installed the AirPlaneDesign WB, and want to make a vertical strut i.e. I'd like the profile in the X-Y and the span in the Z-direction. My issue is, no matter what data I provide, (custom or built ...