Search found 6 matches

by akuthi
06 Jun 2019, 06:33
Forum: Bug reports
Topic: Elmer crash when clicking on boundaries
Replies: 11
Views: 2957

Re: Elmer crash when clicking on boundaries

elmerguifix.pdf There is a simple workaround: 1) Import your mesh or open your project. 2) Before you do anything, as soon as the surface mesh is displayed in ElmerGUI, deselect "Sharp edges" in the menu "View" 3) Go ahead do what you want, the thing now works, and you can select any boundary and b...
by akuthi
21 May 2019, 02:54
Forum: Bug reports
Topic: MgDyn2DHarmonic gives wrong magnetic field value
Replies: 9
Views: 402

Re: MgDyn2DHarmonic gives wrong magnetic field value

Additional info: It seems that the conductivity gets multiplied by mu and muvacuum, correctly, (the skin depth does scale correctly with mu) but the source current density instead of mu * muvacuum gets multiplied by muvacuum squared, thus the giant error in the computed field on axis. The system can...
by akuthi
16 May 2019, 07:02
Forum: Bug reports
Topic: MgDyn2DHarmonic gives wrong magnetic field value
Replies: 9
Views: 402

Re: MgDyn2DHarmonic gives wrong magnetic field value

Hi Mika, Thanks for catching the potential variable definition error. It was generated by the ElmerGui. I have changed to correct the potential Im:1, and added the extra permeability of Vacuum = 12.56e-7 to the constants section. Result: zero change to the output magnetic field and potential... So t...
by akuthi
10 May 2019, 19:00
Forum: Bug reports
Topic: MgDyn2DHarmonic gives wrong magnetic field value
Replies: 9
Views: 402

Re: MgDyn2DHarmonic gives wrong magnetic field value

Thanks, Matthias! I don't think the solver uses the permeability at all, as I tried to change the relative permeability to the vacuum value to fool the solver, and it gave the same wrong value as before...It clearly did not care about the permeability at all. I am not good enough to repair the code,...
by akuthi
09 May 2019, 19:47
Forum: Bug reports
Topic: MgDyn2DHarmonic gives wrong magnetic field value
Replies: 9
Views: 402

Re: MgDyn2DHarmonic gives wrong magnetic field value

Thanks, Matthias! The previously enclosed case.sif file has the extra constant defined as 12.56e-7, but it did not change anything, the model output axial B-field (and also the potential) is still incorrect, the solver - it seems - does not use the vacuum permeability constant! For now, I can just c...
by akuthi
09 May 2019, 02:08
Forum: Bug reports
Topic: MgDyn2DHarmonic gives wrong magnetic field value
Replies: 9
Views: 402

MgDyn2DHarmonic gives wrong magnetic field value

I have used MgDyn2DHarmonic and MgDyn2Post to solve a simple toroid generated magnetic field on axis. It gives a value which is exactly 4e-7 times the actual (analytic) value. Maybe a corrupted mu0 = 4 pi 1e-7 is the cause? Or maybe I am missing something... The real trouble is that it also corrupts...