Issue of taking absolute value of source signal

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Hello I assigned a modulated gaussian pulse to a circle in 2D through electric current density. However, the result when the wave propagates does not show the negative part as if it is in absolute value form. This is verified by a probe result. How to cancel the absolute effect?

Thank you


1 Reply Last Post 2 juil. 2024, 13:20 UTC−4
Robert Koslover Certified Consultant

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Posted: 1 day ago 2 juil. 2024, 13:20 UTC−4
Updated: 1 day ago 2 juil. 2024, 13:20 UTC−4

Any chance you are plotting the norm (i.e., magnitude) of your signal vs. time? In many cases, Comsol's default/suggested plots are of the norms of values of interest. If that's not your problem, then I suggest you post your model to the forum so that people can see what you are actually trying to do.

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
Any chance you are plotting the norm (i.e., magnitude) of your signal vs. time? In many cases, Comsol's default/suggested plots are of the norms of values of interest. If that's not your problem, then I suggest you post your model to the forum so that people can see what you are actually trying to do.

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