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Modelling Current Flow with AC/DC Module

Posted 25 mai 2020, 12:13 UTC−4 Electromagnetics, Results & Visualization, Studies & Solvers 1 Reply

Robert Andrade
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Hi!

I'm new to Comsol, and I'm trying to model current flow and resistance through a resistive medium (eventually, the resistance will fluctuate, and the study will be time-dependent). However, my study only outputs electric potential values. Is there a way to change the output variables/ make an equation-based output to solve for current based on resistance and electric potential, for example?

Thank you for reading my question!

1 Reply Last Post 25 mai 2020, 12:26 UTC−4
Skandan Chandrasekar
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Posted: 5 years ago 25 mai 2020, 12:26 UTC−4

Yes, it is possible. You can define a component coupling(integration) node on the domain for which you are trying to calculate the current. Name it int_surf. Then, when during postprocessing, in the expressions field, enter int_surf(ec or es. normJ).

Yes, it is possible. You can define a component coupling(integration) node on the domain for which you are trying to calculate the current. Name it int_surf. Then, when during postprocessing, in the expressions field, enter int_surf(ec or es. normJ).

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