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 The information provided may be out of date.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.

Issues with initial values in laminar level set

Please login with a confirmed email address before reporting spam

I am having some trouble with a model involving initial values with a laminar level set computation. According to the help file CFD Module>The Multiphase Flow Interfaces>Initial Values I should have two initial values one for my aqueous phase and one for my hydrophobic phase. However when ever I do this I get an error. The specific error I receive is “Error: Failed to find consistent initial values”. When I delete the second initial value this error does not occur. If I delete the initial value the model continues to solve albeit slowly. My questions are this. If I don’t have the second initial value am I solving for the same thing, or is there an error somewhere else and I should keep the second initial value?

I have attached the file to this for expediencies sake.

Thank you in advance

Zack


1 Reply Last Post Feb 5, 2015, 10:24 a.m. EST
COMSOL Moderator

Hello Zachary Heidemann

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: 9 years ago Feb 5, 2015, 10:24 a.m. EST
The handling of initial values in Two-phase laminar flow confuses me as well. When I set-up two initial value conditions, one for each sub domain as you do, I cannot see that they will be reflected when I obtain initial values of my first study step.
The handling of initial values in Two-phase laminar flow confuses me as well. When I set-up two initial value conditions, one for each sub domain as you do, I cannot see that they will be reflected when I obtain initial values of my first study step.

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.