Menu

Discussion Forum

New Discussion
Filtern

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 The information provided may be out of date.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.

Weak Boundary on COMSOL 3.5 a COMSOL 4.2a

Posted 19.04.2012, 17:16 GMT-4 Version 4.2a 5 Replies

Omar Medina
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi, I am chemical engineer of the Mexico City.

In the work: square_droplet_2Daxi_reset.mph, that this in the comsol version 3.5a, in the tutorial in the step 7:

Open the Equation Systyem > Boundary Settings from the Physics menu. Enter on the Weak tab for Boundaries 3, 4 and 5:
-nu_surf*r*test(uTr)- nu_surf*test(u) for u (5th line)
-nu_surf*r*test(vTz) for v (6th line)
These expressions represent the terms of the integral.


My question is: How do I implement this in the version of COMSOL 4.2a?

5 Replies Last Post 27.10.2012, 04:11 GMT-4
Peiding Chen
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 30.04.2012, 12:15 GMT-4
an exemple,

add physics laminar flow.
activate "advanced physics interface options" through the "show" label at the "Model builder"
right click "laminar flow" you will find "weak contribution" etc. in the option "more"

hope that this helps
an exemple, add physics laminar flow. activate "advanced physics interface options" through the "show" label at the "Model builder" right click "laminar flow" you will find "weak contribution" etc. in the option "more" hope that this helps
Omar Medina
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 05.06.2012, 17:00 GMT-4
Dear: Peiding Chen

thank you for the information, you could send me your personal mail to contact
Dear: Peiding Chen thank you for the information, you could send me your personal mail to contact
Peiding Chen
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 11.06.2012, 04:17 GMT-4
Yeah, of course. Texted you
Yeah, of course. Texted you
Prashant Agrawal
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 27.10.2012, 04:10 GMT-4
Hello,

I am working on the same problem on 4.2a. I used the 'Weak Contribution' and entered the entire expression on the given field but it is still not working.

Can someone please help me out on this?

Thanks and Regards,
Prashant
Hello, I am working on the same problem on 4.2a. I used the 'Weak Contribution' and entered the entire expression on the given field but it is still not working. Can someone please help me out on this? Thanks and Regards, Prashant
Prashant Agrawal
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 27.10.2012, 04:11 GMT-4
Hello,

I am working on the same problem on 4.2a. I used the 'Weak Contribution' and entered the entire expression on the given field but it is still not working.

Can someone please help me out on this?

Thanks and Regards,
Prashant
Hello, I am working on the same problem on 4.2a. I used the 'Weak Contribution' and entered the entire expression on the given field but it is still not working. Can someone please help me out on this? Thanks and Regards, Prashant

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