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Time steps decrease abruptly after stopping a time dependent simulation

Posted 14 oct. 2021, 07:52 UTC−4 Electromagnetics, Low-Frequency Electromagnetics Version 5.6 1 Reply

Aki
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Hi, I am using magnetic field(mf) simulation. I find every time I continue a study after stop and saving it, the time steps will decrease greatly compared to the steps before I stop it. The simulation becomes too slow to output a solution due to the tiny steps. Are there any solutions to improve the situation?

1 Reply Last Post 14 oct. 2021, 10:10 UTC−4
Jeff Hiller COMSOL Employee

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Posted: 3 years ago 14 oct. 2021, 10:10 UTC−4

Hello Aki,

This Knowledgebase entry explains how the transient solver selects the initial time step size and discusses how you can affect the time step size by adjusting solver settings. I think this will answer your question.

Best,

Jeff

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Jeff Hiller
Hello Aki, This [Knowledgebase entry](https://www.comsol.com/support/knowledgebase/1254) explains how the transient solver selects the initial time step size and discusses how you can affect the time step size by adjusting solver settings. I think this will answer your question. Best, Jeff

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