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September 21, 2015, 18:18
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stability comparison
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#1 |
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Senior Member
Join Date: Jun 2010
Posts: 111
Rep Power: 15  |
I have used two method to solve a system of nonlinear equation, with the same number of time steps, mesh, and solver, etc. Can I comment on the stability of the two methods, based on the largest time step sizes that still produces stable results? (I know it will not be a definite proper stability analysis) - any other suggestions are also welcome.
Also, if I the results seem stable, but the CFL is no longer satisfied with the larger time steps, it is correct to take the step size at which CFL condition is not satisfied as the largest step size, even though the results may seem stable? |
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| Tags |
| converg condition, eigenvalues, nonlinear systems, numerical error, stability analysis |
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