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Bug for PDE (coefficient form) in Comsol 4.0a
Posted Nov 19, 2010, 7:50 a.m. EST 1 Reply
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Hi,
I've just bumped into a bug in Comsol 4.0a. When using PDE in coefficient form (for 1D at least), the equation displayed by Comsol is correct when only one dependant variable is defined, but is not correct when more than one dependant variables are defined.
To be more precise, when using more than one dependent variables the last two terms of the PDE (beta*nabla u + a*u) became beta*u + u...
So I'd like to be sure that it is only a typo mismatch and that the equation "running in the code" is the same in both cases (1 or several variables). Does anyone have an answer to this question?
This bug has already been reported (see the first discussion about this bug : www.comsol.com/community/forums/general/thread/9656/), so I see no need to post to support@...
Thanks
I've just bumped into a bug in Comsol 4.0a. When using PDE in coefficient form (for 1D at least), the equation displayed by Comsol is correct when only one dependant variable is defined, but is not correct when more than one dependant variables are defined.
To be more precise, when using more than one dependent variables the last two terms of the PDE (beta*nabla u + a*u) became beta*u + u...
So I'd like to be sure that it is only a typo mismatch and that the equation "running in the code" is the same in both cases (1 or several variables). Does anyone have an answer to this question?
This bug has already been reported (see the first discussion about this bug : www.comsol.com/community/forums/general/thread/9656/), so I see no need to post to support@...
Thanks
1 Reply Last Post Nov 20, 2010, 8:28 a.m. EST
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Posted:
1 decade ago
Hi
try to get hands on a new 4.1 version, most of these issues are corrected, in anycase report it to "support" so they are sure its done
--
Good luck
Ivar
try to get hands on a new 4.1 version, most of these issues are corrected, in anycase report it to "support" so they are sure its done
--
Good luck
Ivar