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.
Unstable solution in PDE System
Posted Jul 10, 2024, 11:21 a.m. EDT 2 Replies
Please login with a confirmed email address before reporting spam
Hi,
I have a problem with a system of differential equations in which one variable has an unstable solution.
I suspect this instability is because the problem is advective and with FEM advective problems are usually unstable. However, I find it strange that COMSOL does not have a stabilization system. Is there any way to stabilize the solution?
In one of the scientific articles that I am using as a basis for this work they mention the use of an "orthogonal collocation method" as a variant of the FEM that allows a stable solution. Is there a possibility to solve the problem using this method?
Couldo someone help me with this issue ?
Thank you for your attention.
Best,