I have been trying to solve Stokes equation in 3D micro - geometrical meshed. I'm currently exploring the Fluid model>Creeping flow>stationary of COMSOL 4.4. Comsol failed to solve my problem. It continue showing me "Failed to find a solution. Divergence of the linear iterations. Returned solution is not converged". Going through discussion forum, someone suggested that unchecking "p" on "solver manager" in "solver paramters" would help solve the problem. Please, can anyone help me on how I can locate this solver manager in COMSOL 4.4? Or what is a suitable approach? Thank you all,
Otaru, A.J.
Hi Otaru,
Like any numerical problem, I would suggest trying to simplify the problem to obtain a "result" which you can judge. Then add more complexity as you go. I know this is quite basic advice, however it does tend to work (most of the time). Best wishes in your work.
Regards
Murat
The problem could be due to initial values. Can you solve the problem with a direct solver?
Simulate you problem with a different study group instead of stationary. For example, use frequency domain with a quite small frequency. COMSOL settings will be adjusted accordingly.
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