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Using waveform operator or frequency domain alaysis
Posted 9 févr. 2015, 23:15 UTC−5 Low-Frequency Electromagnetics Version 5.0 1 Reply
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I want to model two electrodes: one is emitting AC voltage (let say +/- 100 V) and one is the ground. I would like to ask which one is better:
1. use time dependent analysis, define a sine waveform, and define the electric potential boundary as wv1(t[1/s])
2. use time dependent analysis, directly define the electric potential boundary as 100*sin(2*pi*f*t[s])
3. use frequency domain analysis and define the electric potential boundary as a constant of 100 Volt.
Many thanks in advance for helping me.
Best regards,
Evan Tanotogono
Hello Evan Tanotogono
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You may have already solved your problem.According to my experience, it would be better using frequency domain analysis in the situation you described. Compared to frequency domain analysis, time dependent study is more time-consuming. What's worse, time step must be correctly selected, otherwise the result may be far from what is expected.Recently I 'm trying to apply a sine excitation with the frequency of f0=4.6MHz, so I input 'sin(2*pi*f0*t)' and click the'Plot' button.But the resulted plot was not a sine wave.
If you have the same experience,please tell me how you handle it.
Thanks for advice!