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by eggy
Thu Sep 19, 2019 7:31 pm
Forum: CfdOF / CFD
Topic: Write Mesh times out only with refinement mesh
Replies: 4
Views: 566

Re: Write Mesh times out only with refinement mesh

I am having no luck. I have changed the order of operations, the size of the mesh, and the only thing that works with this model is if I only run the initial mesh. Mesh refinement goes on forever, or several hours before I kill it. I have not tried putting the armillary in the middle of the cube ins...
by eggy
Tue Sep 17, 2019 5:38 pm
Forum: CfdOF / CFD
Topic: Write Mesh times out only with refinement mesh
Replies: 4
Views: 566

Re: Write Mesh times out only with refinement mesh

I stopped it at over an hour. The opensim documentation and the macros to do the UAV tutorial all pick the 'Shell' so that the UAV is chosen during the mesh refinement (second meshing). I have tried both the 'Shell' which runs and runs, and the 'Slice' object which doesn't even increment the timer i...
by eggy
Tue Sep 17, 2019 2:54 pm
Forum: CfdOF / CFD
Topic: Write Mesh times out only with refinement mesh
Replies: 4
Views: 566

Re: Write Mesh times out only with refinement mesh

I think I found my error. I was using the 'Shell' object to selcet faces at the mesh refinement stage, but I should have selected 'Slice' object. I will know when it finishes running, but it seems to be progressing with the timer incrementing below now. Thanks anyway! Rob [EDIT] - Perhaps I spoke to...
by eggy
Tue Sep 17, 2019 1:25 pm
Forum: CfdOF / CFD
Topic: Write Mesh times out only with refinement mesh
Replies: 4
Views: 566

Write Mesh times out only with refinement mesh

I have geometry in the form of an armillary that is setup per the CFD tutorial of the UAV with some necessary modifications. When I run 'Write mesh' on only the primary mesh, it writes and saves quickly. When I try to do a 'Refine mesh' and then go to 'Write mesh' it times out. I have tried it with ...
by eggy
Fri Sep 13, 2019 5:41 pm
Forum: CfdOF / CFD
Topic: CFD tutorials from opensim - UAV - 03 macro
Replies: 2
Views: 632

Re: CFD tutorials from opensim - UAV - 03 macro

Thanks for the quick feedback! I am far from an expert, but maybe if I get my example working, I will try and copy the examples page and update it with newer WB screenshots? I have moved on to a more complex geometry, and the first mesh is taking forever just to write the mesh case, so I will go bac...
by eggy
Thu Sep 12, 2019 10:27 pm
Forum: CfdOF / CFD
Topic: CFD tutorials from opensim - UAV - 03 macro
Replies: 2
Views: 632

CFD tutorials from opensim - UAV - 03 macro

First, thanks to all who have brought this to FreeCAD; I am learning so much. I have worked through the opensim tutorials, however, I have a few questions about some of the details. The CFD - UAV tutorial runs OK, but has some differneces from the documentation included. In macro 03-refineMesh.FCMac...
by eggy
Sun Apr 08, 2018 9:07 pm
Forum: Open discussion
Topic: Proposition of new workbench: Kinematic Scheme
Replies: 29
Views: 5530

Re: Proposition of new workbench: Kinematic Scheme

That is sad. My condolences to his friends here and his family. Thank you for letting me know.
by eggy
Fri Apr 06, 2018 10:27 pm
Forum: Open discussion
Topic: Proposition of new workbench: Kinematic Scheme
Replies: 29
Views: 5530

Re: Proposition of new workbench: Kinematic Scheme

I just looked into Freedyn. It seems like HOTINT with better graphics. What do you know about it?

I will play more with it this weekend.
by eggy
Fri Mar 16, 2018 2:37 pm
Forum: FEM
Topic: Meshing question - Ansys vs. Gmesh
Replies: 2
Views: 568

Re: Meshing question - Ansys vs. Gmesh

Thank you HarryvL.

Your specific comments were my gut feeling. I am going to run a test over the weekend with the geometry in my FreeCAD FEM setup, and see if there is a big change.

I'll get back to you, and share my findings.

eggy
by eggy
Thu Mar 15, 2018 7:16 pm
Forum: FEM
Topic: Meshing question - Ansys vs. Gmesh
Replies: 2
Views: 568

Meshing question - Ansys vs. Gmesh

I am trying to validate, or come close to some numbers, a friend of mine ran in Ansys (see below). I know optimizations are made, but the mesh looks very irregular near the radius with the values: 55638, 43397, 31925. I am going to automesh it in FreeCAD FEM and then check, but I am curious about th...

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