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by Crossleyuk
Fri Oct 11, 2019 10:18 pm
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 34319

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

Thank you again Oliver, I did try that after your suggestion that also came from ParaView forum and obtained the following. I actually managed to generate a clip and glyph that gave me thye omega pattern on the clip surface. Made great progress today and can make progress now. Key thing is I can now...
by Crossleyuk
Thu Oct 10, 2019 7:54 pm
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 34319

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

Thanks Oliver, I'll try that all out.

Michael
by Crossleyuk
Thu Oct 10, 2019 11:09 am
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 34319

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

Hope I've provided enough information and as I say, I've posted here and on Paraview Forum.

10-10-19 PV 5.4.1 About.PNG
10-10-19 PV 5.4.1 About.PNG (203.78 KiB) Viewed 77 times
10-10-19 PV 5.7.0 About.PNG
10-10-19 PV 5.7.0 About.PNG (205.69 KiB) Viewed 77 times
10-10-19 PV 5.4.1 FreeCAD CfdOF About.PNG
10-10-19 PV 5.4.1 FreeCAD CfdOF About.PNG (203.99 KiB) Viewed 77 times
by Crossleyuk
Thu Oct 10, 2019 11:08 am
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 34319

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

OS: Windows 10 Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.18.16117 (Git) Build type: Release Branch: releases/FreeCAD-0-18 Hash: dbb4cc6415bac848a294f03b80f65e888d531742 Python version: 3.6.6 Qt version: 5.6.2 Coin version: 4.0.0a OCC version: 7.3.0 Locale: English/UnitedStates...
by Crossleyuk
Sun Oct 06, 2019 10:28 am
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 34319

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

Thnanks for the feedback. I couldn't understand why gauge or absolute should make such differences as you say pressure difference must be the driver in incompressible flow. I'm now repeating with increased numbers of iterations but will check out your initial conditions suggestion next. Quick questi...
by Crossleyuk
Sat Oct 05, 2019 12:23 pm
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 34319

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

Your changes have confirmed that I have a lot of work to do to develop my CFD and boundary conditions understanding. In particular turbulence intensity and eddy length scale. To be clear, my pressure boundaries were: Absolute Pressure Control Inlet = 1e5 Pa Radial Inlet = 1e5 Pa Outlet (Open) = 98 k...
by Crossleyuk
Sat Oct 05, 2019 11:08 am
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 34319

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

Hi Oliver, Great progress but I need to gather a better understanding, after a lot of help from you. I have had great results but only if I follow my previous expectation that I had to use absolute pressures. This is from my current attached model that was fully built in 0.18 and now your revised Cf...
by Crossleyuk
Fri Oct 04, 2019 11:00 am
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 34319

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

Hi Oliver, First of all THANK YOU!! Wonderful job and massive success for me. Not only have your changes solved the running problems but the model runs even better that before in FC 0.17. The residuals are greater than 1000 time lower than previous 0.17 runs. So impressed and love your open source e...
by Crossleyuk
Fri Oct 04, 2019 9:07 am
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 34319

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

Thanks Syres and thschrader I did discover that about the Multi Region Mesh cube, it was a selected units problem. But I cannot use it at all in 0.81 with the new Workbench. I'll now move on with Olivers latest suggesten and changes. Fingers firmy crossed, I love what you are ALL doing and your open...
by Crossleyuk
Thu Sep 26, 2019 9:07 am
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 34319

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

I'm also confused and trying to be clear. The case I last sent was one that I was ure worked great in 0.17 and the old CfdOF but failed when, as I thought was suggested at the time, the CfdOF workbook was revised. I don't have any other cases that I had success with but I went back to my learning tu...

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