Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
COMSOL Gallery Application ID 51821
Posted 2023年10月24日 GMT-4 15:37 Electromagnetics, Low-Frequency Electromagnetics, Studies & Solvers Version 6.0 3 Replies
Please login with a confirmed email address before reporting spam
I was following the below mentioned example from COMSOL Gallery Induction heating of a moving ferromagnetic mechanical part Application ID: 51821
Here under the parameters frequency f is defined to be 1kHz. However, I couldn't find where is this frequency used in the model. They have used a 'stationary' and a 'time dependent' study. Neither of them takes the frequency as an input. They have not used any 'frequency domain' or a 'frequency stationary' or a 'frequency transient' study. So how are the feeding the frequency f to their model or solver. Could anyone help me?
Please login with a confirmed email address before reporting spam
I don't do rotating machinery but I was curious.
If you delete the parameter f then Comsol can't calculate del_sat. If you then insert a number for del_sat instead of an expression then the model solves. I conclude that f enters only though del_sat (whatever that is).
Please login with a confirmed email address before reporting spam
It is used in the Equation section in the Rotating Machinery, Magnetic node, and also to define another parmeter del_sat as Dave points out.
If you have problems finding where a variable or parameter is either defined of referenced, use Ctrl+F to bring up the search pane.
-------------------Henrik Sönnerlind
COMSOL
Please login with a confirmed email address before reporting spam
Thank you Henrik. It is now solved. Also thanks for pointing out that Ctrl+F works in COMSOL. I did't know that. It would be very useful indeed. Also thank you Dave. This forum is amaizingly helpful.