Menu

Discussion Forum

New Discussion
Filtra

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.

No Options for Setting Constraints in Magnetic Field Model

Posted 24 ott 2022, 08:40 GMT-4 Electromagnetics, Modeling Tools & Definitions, Modeling Workflow 3 Replies

JoP12321
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi,

I'm using COMSOL Multiphysics 5.4.0.388.

I'm follwoing through every step of the online COMSOL tutorial: "Modeling a Solenoid Actuator" - Part 13 of COMSOL's modelling a coil series.

In the video (around 30m:09s), the COMSOL representative adds a continuity in the magnetic field section. Then, he opens up the constraint settings, and manually enables 'Use Weak Constraints'.

Unfortunately, I do not even have a constraint settings tab on my version of COMSOL. I have attached screenshots of my COMSOL model - the options for constraint settings do not appear in the 'continuity' branch of my model, nor it's sub-branch 'magnetic insulation 1'. There should be constraint settings in both of these branches.

Does anyone know the cause of this? Is this perhaps a feature of an older version of COMSOl, that has now been removed? If not, do you know what else it could be?

Thanks in advance!

3 Replies Last Post 24 ott 2022, 10:18 GMT-4
Jeff Hiller COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 2 years ago 24 ott 2022, 09:50 GMT-4
Updated: 2 years ago 24 ott 2022, 09:58 GMT-4

Hello JoP,

Click on the "Show more options..." button (located at the top of the Model Builder window), then check the "Equation Based Contributions" checkbox. This will enable weak constraints.

Best regards,

Jeff

PS: I don't have 5.4 on my machine any more, so please confirm in this thread that it solved your problem.

-------------------
Jeff Hiller
Hello JoP, Click on the "Show more options..." button (located at the top of the Model Builder window), then check the "Equation Based Contributions" checkbox. This will enable weak constraints. Best regards, Jeff PS: I don't have 5.4 on my machine any more, so please confirm in this thread that it solved your problem.
JoP12321
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 2 years ago 24 ott 2022, 10:04 GMT-4

Hi Jeff,

Brilliant - thank you!

Yeah it was under 'Show more options' > 'Show Advanced Physics Options'.

Thanks for your help!

Hi Jeff, Brilliant - thank you! Yeah it was under 'Show more options' > 'Show Advanced Physics Options'. Thanks for your help!
Jeff Hiller COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 2 years ago 24 ott 2022, 10:18 GMT-4

Thank you for confirming.

As you'll have figured, it's one of those more advanced features of the software that, to keep the interface cleaner for most users who don't need them, is a bit hidden by default.

Jeff

-------------------
Jeff Hiller
Thank you for confirming. As you'll have figured, it's one of those more advanced features of the software that, to keep the interface cleaner for most users who don't need them, is a bit hidden by default. Jeff

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