COMSOL Forums: Automatic time step increase in generalized-alpha solver

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Automatic time step increase in generalized-alpha solver

April 3, 2014, 5:32 am

Particle tracing is conducted by a generalized-alpha solver. For many cases, when the particle motion is finished, the time step is increased drastically. However, in current case, time step is...

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Re: Automatic time step increase in generalized-alpha solver

April 3, 2014, 11:21 am

Hi Chang-Ho, With Brownian force you COMSOL needs a small enough time step such that the random force is “applied” a sufficient number of times. If you loosen the convergence tolerances COMSOL will...

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Re: Automatic time step increase in generalized-alpha solver

April 3, 2014, 7:02 pm

Thank you for the rapid response^^ Is it also dependent on the particle number?

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Automatic time step increase in generalized-alpha solver

April 3, 2014, 11:32 am

Particle tracing is conducted by a generalized-alpha solver. For many cases, when the particle motion is finished, the time step is increased drastically. However, in current case, time step is...

View Article

Re: Automatic time step increase in generalized-alpha solver

April 3, 2014, 5:21 pm

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Re: Automatic time step increase in generalized-alpha solver

April 4, 2014, 1:02 am

Thank you for the rapid response^^ Is it also dependent on the particle number?

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Automatic time step increase in generalized-alpha solver

April 3, 2014, 6:32 am

Particle tracing is conducted by a generalized-alpha solver. For many cases, when the particle motion is finished, the time step is increased drastically. However, in current case, time step is...

View Article

Re: Automatic time step increase in generalized-alpha solver

April 3, 2014, 12:21 pm

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Re: Automatic time step increase in generalized-alpha solver

April 3, 2014, 8:02 pm

Thank you for the rapid response^^ Is it also dependent on the particle number?

View Article