Elmer Discussion Forum

Taking this case of steady state stress due to heat
viewtopic.php?t=8128

and then modifying it to read a time history from a file and do transient.

I took a cylinder of the same size and meshed it in a sphere of air and a cylinder of air and the results were very different. Same element type and density.

You can search this forum for PCB, there have been PCB models discussed.

With your geometry it my be best to stick with a cylinder for the air with a mesh similar to Figure 14.1 on page 91
https://www.nic.funet.fi/pub/sci/physic ... orials.pdf

The air volume in paraview can be turned off and one by using the threshold filter, filter on geometry IDs, you can filter to only show the bodies you want to see. In the run I posted I had put voltage on the outer skin, and ground on the inner skin. I will re-run with voltage on the end. I tried me...

My mesh was very different, generally with magdyn the part is placed in a volume of air, preferably a sphere since the far field boundary is tangent to the surface. farfield.png cylinder.zip If you look at the elmag examples they are generally done this way. https://github.com/ElmerCSC/elmer-elmag

Looks OK to me. The magnitude of the magnetic field in Paraview appears to be always a postive number, but the components x, y, z oscillate. I used your sif, but I had to build the mesh.

Have you considered p elements as an alternative to higher order node elements.

Appendix E,
https://www.nic.funet.fi/pub/sci/physic ... Manual.pdf

Your flow appears to be very turbulent which can be a challenge in Elmer.

viewtopic.php?t=6995&hilit=turbulent+flow

I may have mixed up the coil and the core in my sif, need to verify the bodies.
Also use the elemental results, the ones ending in e.