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COMSOL Gallery Application ID 51821
Posted 24 ott 2023, 15:37 GMT-4 Electromagnetics, Low-Frequency Electromagnetics, Studies & Solvers Version 6.0 3 Replies
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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?
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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).
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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
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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.