Search found 4812 matches

by raback
27 Mar 2024, 16:32
Forum: General
Topic: Elmer as a replacement for Ansys HFSS in superconducting quantum circuits
Replies: 1
Views: 30

Re: Elmer as a replacement for Ansys HFSS in superconducting quantum circuits

Hi Most transient models can also solve eigenmode problems. These are consistency tests for EM waves with two different formulations: elmeruser@elmer-VirtualBox:~/Source/elmerfem/fem/tests$ grep -i 'eigen anal' -r | grep wave EMWaveBoxHexasEigen/emwave.sif: Eigen Analysis = True mgdyn_wave_eigen/cas...
by raback
27 Mar 2024, 16:23
Forum: ElmerSolver
Topic: Free-Free Beam Eigenvalue Test
Replies: 6
Views: 53

Re: Free-Free Beam Eigenvalue Test

Hi Just a note on something that could be confusing: If ResultOutputSolver (the one writing vtu files) is given the keywords "Eigen Analysis = Logical True" the numbering will reflect eigenvalues. Otherwise it will reflect timesteps (or steady state iteration steps) and specific naming sch...
by raback
26 Mar 2024, 13:07
Forum: Contributed Cases
Topic: Electric field analysis: high voltage transformer bushing
Replies: 2
Views: 73

Re: Electric field analysis: high voltage transformer bushing

Hi

Paraview has been broken by automated update of "expat" library on some platforms. Really annoying.
viewtopic.php?t=8259

-Peter
by raback
25 Mar 2024, 11:29
Forum: Installation & compilation
Topic: Elmer WSL Debian 12 with Elmer Virtual Machine Scripts
Replies: 3
Views: 131

Re: Elmer WSL Debian 12 with Elmer Virtual Machine Scripts

Hi Masahiro,

Really great work you have done to bring Elmer into the Windows Subsystem! With the detailed instructions I'm sure many people will try this out.

-Peter
by raback
25 Mar 2024, 11:25
Forum: Installation & compilation
Topic: Building Elmer for Nixpkgs fails
Replies: 1
Views: 29

Re: Building Elmer for Nixpkgs fails

Hi

Rather use the "devel" branch and let's see the complaints anew then.

-Peter
by raback
20 Mar 2024, 19:54
Forum: External tools
Topic: Gmsh: extrusion help
Replies: 3
Views: 43

Re: Gmsh: extrusion help

Hi

Maybe you only save physical entities. Ask Gmsh to "save all".

-Peter
by raback
20 Mar 2024, 18:55
Forum: ElmerSolver
Topic: WhitneyAVSolver unphysical B field when currents "close" to steel
Replies: 9
Views: 147

Re: WhitneyAVSolver unphysical B field when currents "close" to steel

Hi

Great! You almost had me worried. Maybe you could share the final outcome at the elmer-elmag repo.

-Peter
by raback
19 Mar 2024, 23:51
Forum: ElmerSolver
Topic: WhitneyAVSolver unphysical B field when currents "close" to steel
Replies: 9
Views: 147

Re: WhitneyAVSolver unphysical B field when currents "close" to steel

Hi, Ok, maybe the Jfix potential has a support that extends to the steel. On the other hand you cannot have a solution to the problem unless the divergence of current density is very closely zero. The alternative is to use elemental coil current in CoilSolver and request the "Fix Input Current ...
by raback
19 Mar 2024, 18:52
Forum: ElmerSolver
Topic: WhitneyAVSolver unphysical B field when currents "close" to steel
Replies: 9
Views: 147

Re: WhitneyAVSolver unphysical B field when currents "close" to steel

Hi Do you have a reference solution? Last year around this time we looked at an even more simple case that intuitively didn't make sense. It was a case of cocentric cylinders with a jump in reluctivity. In the end we could find no problem in Elmer. We compared to an analytical model where it was eas...
by raback
19 Mar 2024, 13:16
Forum: ElmerSolver
Topic: Unable to open .vtu file after Electrostatics tutorial
Replies: 8
Views: 85

Re: Unable to open .vtu file after Electrostatics tutorial

Hi, Just a note: the ascii output seems to be unaffected by the bug. So setting "Ascii Output = True" in ResultOutputSolver may save the day for some users. If you face this bug and want to open binary files you should revert to old "expat" library, or install paraview 5.12 with ...