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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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Wrong number of dofs in initial value.

Posted 2012年1月8日 GMT-5 13:06 Plasma Physics Version 4.2a 2 Replies

Marian Polak
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I have new model and new error:

Pleasse help me:

Time depndent study:

Wrong number of dofs in initial value.

Whot is it dofs ?

Thank.
2 Replies Last Post 2012年3月21日 GMT-4 10:03
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 2012年1月8日 GMT-5 14:03
Hi

"DoF" are "Degrees of Freedom" or unknowns. Someting must have gone wrong with your model.

I would propose to try a Edit clear all solution, clear mesh, File reset save, close COMSOL and reopen a fres new session and hen load the file and try again.

If that is not enough, there is the possibilit to also "delete" the solver sequence, but it will also clear all your predefined plots, so you must regenerate them.

Sometimes, when you change often your model during build-up and debugging you might change too many things so COSMOL has trouble adapting the solver sequence (dependent variables, segregation steps, etc)

I cant remember havenig seen that particular error

--
Good luck
Ivar
Hi "DoF" are "Degrees of Freedom" or unknowns. Someting must have gone wrong with your model. I would propose to try a Edit clear all solution, clear mesh, File reset save, close COMSOL and reopen a fres new session and hen load the file and try again. If that is not enough, there is the possibilit to also "delete" the solver sequence, but it will also clear all your predefined plots, so you must regenerate them. Sometimes, when you change often your model during build-up and debugging you might change too many things so COSMOL has trouble adapting the solver sequence (dependent variables, segregation steps, etc) I cant remember havenig seen that particular error -- Good luck Ivar
Johanna Lippmann-Pipke
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Posted: 1 decade ago 2012年3月21日 GMT-4 10:03
Dear Marian,

did you solve your problem? I am currently tackling with identical error message

Although I have followed the advice the COMSOL support returned to you: I have no success in solving my model.

Thanks four your kind answer
Dear Marian, did you solve your problem? I am currently tackling with identical error message Although I have followed the advice the COMSOL support returned to you: I have no success in solving my model. Thanks four your kind answer

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