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.
Why using newton-raphson for steady stokes flow
Posted Feb 2, 2018, 1:50 a.m. EST Fluid & Heat, Computational Fluid Dynamics (CFD) Version 5.3a 0 Replies
Please login with a confirmed email address before reporting spam
Hi, I am a beginner of using COMSOL based on FEM. I am trying to solve steady, creeping flow with stokes equation. In my understanding, the above equation is linear. However, I have found that COMSOL showed two convergence plots in the calculation. One is Newton raphson for non-linear and the other is GMRES for linear. Could anyone teach me the reason why the solver is using these two methods ?
Hello Yutaka Onaka
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.