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.

Problem with ALE Interface in 2D Axisymmetric

Please login with a confirmed email address before reporting spam

Hello,

I am trying to model a sessile droplet in 2D axisymmetric. I don't want to use the microfluidics package for this, so I'm modeling it with laminar flow conditions in the droplet and using the ALE moving mesh in the mathematics physics set. I am applying both gravity and surface tension. However, the interface, which is governed by the moving mesh equations, does not contact the 2D axisymmetry line perpendicularly. This would then mean that the droplet has a sharp edge at its top center, which isn't correct. How can I force the ALE algorithm to respect the line of symmetry? I've attached an image showing the problem (the color coding represents velocity magnitude in the droplet) after a few time steps.

Thank you for any help,
John


1 Reply Last Post 24 juin 2014, 23:30 UTC−4
COMSOL Moderator

Hello John Austin

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.


Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 24 juin 2014, 23:30 UTC−4
How did you apply the surface tension boundary condition in ALE?
How did you apply the surface tension boundary condition in ALE?

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.