Hello, I am modeling a tool that is two opposing magnets (i.e., north faces north or south faces south), which have a solenoid (copper wire wrapped around a soft iron core) between them.
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.
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.