Menu

Discussion Forum

New Discussion
Filter

Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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.

Spiral Coil - Electromagnet

Posted Jul 21, 2011, 11:03 a.m. EDT Low-Frequency Electromagnetics, Geometry Version 4.3a 3 Replies

Dominic Clarke
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi all,

Does anybody know how to get a spiral into the comsol geometry? - I saw a model in the library (RF Coil) that had one, but i can't open it becasue I dont have the RF module.

I want to model a basic electromagnet made from a coil of wire around a cylindrical iron core, do a basic comsol study of the effect of varying current and coil density on the E and B fields.

Thanks.
3 Replies Last Post Nov 13, 2013, 7:39 a.m. EST
Dennis Brown
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago Jul 21, 2011, 2:49 p.m. EDT
If you want to draw the model within the COMSOL gui, in 3D space you can right click the geometry and select other primitive objects, pick helix, and set your parameters. Drawing a cylinder is fairly straightforward. You will have to adjust parameters to get what you want.

If you want to import from another CAD pkg, you need to follow the criteria for importable s/w format for COMSOL.

If you specifically want the coil that goes with the library example, you can just download the .mphbin file and use that. Be forewarned that when you import a .mphbin file, it is a unitless dwg file. You have to scale it to whatever system of units you are using.
If you want to draw the model within the COMSOL gui, in 3D space you can right click the geometry and select other primitive objects, pick helix, and set your parameters. Drawing a cylinder is fairly straightforward. You will have to adjust parameters to get what you want. If you want to import from another CAD pkg, you need to follow the criteria for importable s/w format for COMSOL. If you specifically want the coil that goes with the library example, you can just download the .mphbin file and use that. Be forewarned that when you import a .mphbin file, it is a unitless dwg file. You have to scale it to whatever system of units you are using.
Dominic Clarke
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago Jul 22, 2011, 5:22 a.m. EDT
Thankyou - I was actually working on a machine with 4.0a installed which has the helix feature removed. My regular machine runs 4.2 so I've found the object now.

Thanks very much.
Thankyou - I was actually working on a machine with 4.0a installed which has the helix feature removed. My regular machine runs 4.2 so I've found the object now. Thanks very much.
kishore naik
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago Nov 13, 2013, 7:39 a.m. EST
Hi
I tried with this method , then when i define the multi turn coil domain or single turn coil domain for applying current i am not able to do this , can you pls suggest how to do

--
kishore Naik Mude
Hi I tried with this method , then when i define the multi turn coil domain or single turn coil domain for applying current i am not able to do this , can you pls suggest how to do -- kishore Naik Mude

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content