Modelling cylindrical permanent magnets with radial magnetization using Comsol Multiphysics

This tutorial demonstrates how a permanent magnet with a cylindrical shape and radial magnetization can be modelled in Comsol by defining a cylindrical coordinate system. The video shows an example of an array of 8 magnets that is used in some types of DC motors. The "magnetic fields, no currents" interface is used to reduce the model size. You can also use the "magnetic fields" interface.

00:00 Introduction
00:44 Geometry
03:54 Coordinate system
05:14 Explicit selections
06:45 Materials
07:42 Physics
09:16 Mesh
11:04 Study
11:48 Results

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[sheetalsahu]

HELPED ME A LOT!!! SAVED ME ON MY LAST DAY SUBMISSION OF REPORT.

[rasoulpeykar]

thank you so much, i just watch a bucnh of your tutorials and they were so helpful.

[rayhangu]

Great video Sir, I hope you also make about linear motor or generator and especially how to construct with different shape of gear or like to modifying new gear in it

[rambhatia]

Thank you Jaf-Science for this wonderful video ... it's my request can you upload a tutorial for plasma in presence of a microwave and in the presence magnetic field.

[tisserandstephane]

Dear Sir, your design is right !
Could you please make a simulation of the Friedrich Luling magnet motor with COMSOL ?
Nothing about this

[rupreshadeb]

Dear sir,

Kindly tell me how to plot B vs x (distance from the surface of the magnet) for such simulations

[newmail]

Thank you for the great tutorial.
I have two magnetic field sources in the workspace
and I want to measure their combined effect and their individual effect separately at a point
Which method should I follow?

[khemrajramsamooj]

can I simulate a cylindrical conductor near a loop antenna showing that the loop antenna receiving the fields from the conductor in comsol? Trying to model something similar to wireless power transfer to show that the fields from the conductor being transferred to the antenna

[Zz-rmbk]

Hello, I currently have two permanent magnets and would like to know the magnetic field strength between them. Can you tell me how to do this?

[chmuralikrishna]

Dear Sir, I need help. I am trying to design four port design in COMSOL. I want to terminate one port in that design. How to do it in COMSOL?

[georgeyoussef]

I dont see the "hard magnetic materials" library on my version of COMSOL, is there a way to download and add it?

[kmcdonald]

I have a new product and would like to have my magnets modeled. Is that something you could help me with?

[danascer]

Is it possible to model and experiment a simple magnetic coupling using this method?