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 The information provided may be out of date.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.
Mesh convergence and bc
Posted 16 lug 2014, 12:23 GMT-4 Mesh Version 4.3b, Version 4.4 0 Replies
Please login with a confirmed email address before reporting spam
I have an interpolation function applied to the top boundary of a rectangular geometry. The interpolation function is a table of 50 temperatures which correspond to 50 days (the unit has been specified in arguments). If I am running my model from day 1 to day 50 with a time step equal to 1 day then every day should have its own top boundary surface temperature and the temperature at this boundary should be the same (given a specific time step to look at) regardless of element size.
When I run a mesh convergence test however, I am finding that the runs do not line up at this top boundary like they should when looking at later time steps.
Any thoughts on why this might be? I have attached an image of temperature with depth for the different max element sizes as an example of what I see.
Attachments:
Hello Amber Whelsky
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.