Menu

Discussion Forum

New Discussion
Filtrer

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.

liquid vapor interface in laser drilling problems

Posted 2 févr. 2016, 06:57 UTC−5 Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD), Mesh Version 5.1 1 Reply

Shashank Sharma
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Can we modify the continuity equation in laminar two phase level set, i wish to incorporate evaporation effect which require a source term instead of "0", in the continuity equation?

www.comsol.co.in/paper/keyhole-formation-during-spot-laser-welding-heat-and-fluid-flow-modeling-in-a-2d-13189


1 Reply Last Post 5 déc. 2016, 08:00 UTC−5
COMSOL Moderator

Hello Shashank Sharma

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Mattia Zambolin
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 8 years ago 5 déc. 2016, 08:00 UTC−5
Yes, you can.
Under "equation view" mode, select the equation view of "fluid properties" and, under weak expression you find the line:

-tpf.divu*test(p)

Replace it with:

-tpf.divu*test(p)+your_source_term*test(p)

and you modified the continuity equation.


Yes, you can. Under "equation view" mode, select the equation view of "fluid properties" and, under weak expression you find the line: -tpf.divu*test(p) Replace it with: -tpf.divu*test(p)+your_source_term*test(p) and you modified the continuity equation.

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