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pulsed concentration
Posted Mar 5, 2013, 7:49 a.m. EST 2 Replies
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Hello,
I would like to give a pulsed concentration to my model. Therefore I created a rectangle function rect1.
Then I would like to declare my concentratin c_in as variable as rect1(t[1/s])*0.1 Unfortunately comsol tells me that rect 1 is an unknown variable.
How can I solve this problem?
Kind regards,
Sarah
I would like to give a pulsed concentration to my model. Therefore I created a rectangle function rect1.
Then I would like to declare my concentratin c_in as variable as rect1(t[1/s])*0.1 Unfortunately comsol tells me that rect 1 is an unknown variable.
How can I solve this problem?
Kind regards,
Sarah
2 Replies Last Post Mar 6, 2013, 2:42 a.m. EST
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Posted:
1 decade ago
Hi
where did you define the rect1 ?
in the "Global definitions - ..." or in the "Model - Definitions - Functions - rect" ...
and did you solve first and ten define your function ?, if so do an "Study - right click - Update Solution" first
Defining the solution is done high up in the node tree, compiling and getting it into the data base (Data Set) is done by the solving process
--
Good luck
Ivar
where did you define the rect1 ?
in the "Global definitions - ..." or in the "Model - Definitions - Functions - rect" ...
and did you solve first and ten define your function ?, if so do an "Study - right click - Update Solution" first
Defining the solution is done high up in the node tree, compiling and getting it into the data base (Data Set) is done by the solving process
--
Good luck
Ivar
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Posted:
1 decade ago
Thank you, after updating the solution its working!