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Why using newton-raphson for steady stokes flow
Posted 2 févr. 2018, 01:50 UTC−5 Fluid & Heat, Computational Fluid Dynamics (CFD) Version 5.3a 0 Replies
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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
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