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High-frequency voltage applied to a pipe
Posted 13.07.2023, 17:50 GMT-4 Electromagnetics, Optimization, Physics Interfaces Version 6.1 0 Replies
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Good day,
I am trying to run a time-dependent study on a pipe which has a voltage applied to one end, and ground on the other. The voltage signal is a cyclical sinusoidal damped wave with a frequency of 255kHz.
I am using the 'magnetic and electric fileds' interface alongside a time-dependent study.
The simulations seem to present significant numerical errors when compared to a similar case (The difference is the material inside the pipe. Using air produces good results, but when using a material with different electric condutivity, relative permittivity, and relative permeabillity, is when things start to go wrong.), and they also take 24+ hours to complete, if they complete at all. Some cases have crashed. I have tried fixing a max. time-step, as well as using a finer mesh, however this causes the simulation to crash, or to take longer with the same erroneous results.
I am mostly interested in eliminating the numerical errors.
Attached are the case file as well as the graph produced when looking at the 'electric field norm' at the center through time.
Any and all help is greatly appreciated.
David
Hello David Vazquez
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