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 The information provided may be out of date.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.

Wetted Wall BC

Please login with a confirmed email address before reporting spam

Hi,
What are the equations for wetted wall boundary condition in COMSOL ? I can not find it. I want to know what exactly happens when you set the contact angle. Is COMSOL using the Navier Slip Length ? Is this a local or apparent contact angle ?

2 Replies Last Post 18.05.2014, 17:46 GMT-4
COMSOL Moderator

Hello Osameh Ghazian

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 27.01.2014, 05:37 GMT-5
I have the same query. Someone please clarify.
I have the same query. Someone please clarify.

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 18.05.2014, 17:46 GMT-4
Hi,

I am trying to simulate droplet break up in microfluidic channel( water in oil), Two phase flow-level set. For wetted wall boundary condition I put pi/4 for 3D model, However for the 1D simulation it doesn't work. in this case if I put 3*pi/4, I get the result for making droplet. What is the correct contact angle for making droplet of water in oil in microfluidic channel?

Thanks
Hi, I am trying to simulate droplet break up in microfluidic channel( water in oil), Two phase flow-level set. For wetted wall boundary condition I put pi/4 for 3D model, However for the 1D simulation it doesn't work. in this case if I put 3*pi/4, I get the result for making droplet. What is the correct contact angle for making droplet of water in oil in microfluidic channel? Thanks

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.