This is Jason Kim, studying biomedical engineering in Korea in the field of diagnostic medical device. I'd like to discuss and share your experiences regarding 'Coil and magnetic field' and here I post the question here. The link below is my precedented question and answer.
https://www.comsol.com/forum/thread/224241/stationary-and-time-dependent-study-at-the-same-time?last=2018-12-21T09:49:35Z
Basically, I am trying to find an magnetic interaction between 'rotating permanent magnet' in the magnetic field which is genereated by 'a pair of multi-turn coil' [Pic 1].
By the way, I had a problem with computing both 'time-dependent' and 'stationary study' at together. Below are what I tried but failed.
Independently computing 'time-dependent' and 'stationary study' one by one. ->Each result was established without error but not interacted. The magnetic field from magnet and coil is not mixed but independtly existed. [Pic 2, Pic 3]
Processing all physics only with Time-dependent study ->Error: Failed to finding Initial vaue and Internal error [Pic 4]
Right click 'study(time-dependent)' and tried 'Combined solution' ->Error: Cannot concatenate different types[Pic 5]
I think there must be a solution to solve this problem and I beg you a insight for arranging these studies. Thank you.
Jason