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How to solve a time dependent study of a 3D electromagnet ?
Posted 3 juin 2019, 04:52 UTC−4 Low-Frequency Electromagnetics Version 5.3a 1 Reply
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Feature: Time-Dependent Solver 1 (sol1/t1) Failed to find consistent initial values. Undefined value found. NaN or Inf found when solving linear system using BiCGStab. Last time step is not converged.
I am getting this problem when I was modeling an electromagnet. I have performed the coil geometry step and then I am unable to perform the time-dependent and frequency study. I am however able to do the stationary study where I can get the expected field.
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It seems the problem is with your initial values. Are you starting the simulation with the excitation of the electro magnet already on? If yes, try to ramp it up.
Otherwise, see if you have any material property of any other variable defined as 0, which might be causing your "NaN or Inf" error, and switch it to a relatively small value.