Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

expression dT/dt

Carl Philipp Benthaus

Please login with a confirmed email address before reporting spam

Hey, i want to plot the derivation of the temperature and time (dT/dt) at a specific point over the time. If I enter the expression "d(T,t)" I get the error "Time derivative only allowed with respect to mesh time". If I enter the expression "d(T,TIME)" I get were odd results that cant be true. Can someone tell me the right expression for my problem?


2 Replies Last Post 14 oct. 2018, 15:13 UTC−4
Edgar J. Kaiser Certified Consultant

Please login with a confirmed email address before reporting spam

Posted: 6 years ago 12 oct. 2018, 13:41 UTC−4

Carl,

d(T, TIME) is correct. Derivatives can be noisy.

Cheers Edgar

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Carl, d(T, TIME) is correct. Derivatives can be noisy. Cheers Edgar

Carl Philipp Benthaus

Please login with a confirmed email address before reporting spam

Posted: 6 years ago 14 oct. 2018, 15:13 UTC−4

mh ok thank you!

mh ok thank you!

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.