sigst variable undefined

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I am trying to study surface charge accumulation for a time-domain study on piezoelectric material. But, the sigst variable is always showing as undefined variable. The equation view is showing es.sigs0 is defined and has a value of 0 [initial surface charge density].

If the study is in frequency domain, then surface charge accumulation node works fine.

Thanks in advance.


0 Replies Last Post Jul 26, 2024, 2:31 p.m. EDT
COMSOL Moderator

Hello Prangan Nandy

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