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Prescribed time dependent displacement
Posted 24 nov. 2019, 08:31 UTC−5 Fluid & Heat, Studies & Solvers Version 5.4 0 Replies
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Hi!
I am currently working on making a peristaltic pump and analyzing the influence of different parameters. In order to analyze different heights to which the pump closes and opens again, I want to input a prescribed displacement which is timedependent and shaped like a Gaussian distribution. I use a model which works the same as the one in the following link: https://www.comsol.com/model/peristaltic-pump-985, but instead of using a prescribed displacement, a boundary load is applied. I have given it quite some different approaches, but the following error keeps occuring:
Nonlinear solver did not converge. Maximum number of segregated iterations reached. Time : 0.12828969787110892 Last time step is not converged.
In the convergence plot, you can see that the error for the velocity field and pressure do not diverge.
Would anyone happen to know what causes the error?
Kind regards, Lex
Hello Lex Verberne
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