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Trouble modeling magnets
Posted Jun 18, 2012, 4:25 PM EDT AC/DC & Electromagnetics, Modeling Tools, Parameters, Variables, & Functions Version 4.3 7 Replies
I have attached my model. (I surrounded my device by rectangles/cylinders of air so I can implement a moving mesh.)
My magnets correspond with Ampere's laws 2 and 3 under the Magnetic Field physics, and their magnetic fields are described by the constitutive relation of remanent flux density. My questions are:
1. How can I model them so the like poles face on another? I've been doing it by making one B_r positive and the other negative.
2. My material is anisotropic, but for mur, when I select "User defined" and then "Anisotropic" and then click on any other node in the Model Builder window, the selection changes back to "Isotropic". Why can't I model them as being anisotropic magnets? Do I have to change that matrix? Sorry, I don't understand what that is.
Thanks! Any input would be much appreciated.