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.

Error : Failed to find consistent initial values

Please login with a confirmed email address before reporting spam

Hi !

I'm trying to simulate a magnetic dipole in time domain but I'm encoutring an error. The model is fonctional in frequency domain but when I use the time dependent study, the progress window shows that the simulation stucks in the constraint handling/creating multigrid levels step and soon after I get the attached below error message.

I'd be grateful for any kind of help and thanks for you eventual support !


1 Reply Last Post 16 ott 2012, 10:37 GMT-4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 16 ott 2012, 10:37 GMT-4
Hi

check your equations, COMSOL does not solve fully the same way in transient and in frequency domain, as in ACDC effects are considered as "instantaneous"
MF is missing the "Att" terms, and MEF is missing both "At" and "Att" terms, but you find them back in RF for waves of higher frequency, as you can simulated them (omega and omega^2 terms) correctly in frequency domain = harmonic development in both MF and MEF

Always check your physics equations and the hypothesis from the doc before going too far into a simulation

--
Good luck
Ivar
Hi check your equations, COMSOL does not solve fully the same way in transient and in frequency domain, as in ACDC effects are considered as "instantaneous" MF is missing the "Att" terms, and MEF is missing both "At" and "Att" terms, but you find them back in RF for waves of higher frequency, as you can simulated them (omega and omega^2 terms) correctly in frequency domain = harmonic development in both MF and MEF Always check your physics equations and the hypothesis from the doc before going too far into a simulation -- Good luck Ivar

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.