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Instant decrease of the temperature after the voltage pulse
Posted 6 août 2020, 17:14 UTC−4 Electromagnetics, Heat Transfer & Phase Change 1 Reply
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Hello, dear colleagues!
I am pretty new to COMSOL and nowadays I am making a model with the Heat Transfer in Solids module. I am applying voltage pulses to my structure and looking at the change of the temperature, that happens due to joule heating. The temperature distribution looks great if I apply nanosecond pulses. But as I start working with millisecond voltage pulses the temperature after the end of the pulse instantly decreases, the model has no gradual relaxation of the temperature at this time scale (even if the pulse heated the structure very much). Same thing happens with heating, the heating happens almost instantly. I have already tried to change all of the parameters, but it didn't work. What am I missing?
Thank you in advance and I wish you luck with your models!
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There are a variety of potential causes of that behavior. I suggest you post your model to the forum so that other people here can see what is happening.
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