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Do Cut Point 2D after a parametric sweep computation
Posted Nov 4, 2010, 5:22 p.m. EDT 3 Replies
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comsol version 4.0
1. Define a parameter in Global Definitions, for example "h", and during definition of the Geometry, "h" was used
2. Add Parametric Sweep in Study, and the parameter is "h", the values are h1, h2, and h3 for example
3. After computation, in Results --- Data Sets, I add three Solutions, Solution 1 corresponding to h=h1, Solution 2 corresponding to h=h2, and Solution 3 corresponding to h=h3.
4. After step 3, I add three Cut Point 2D under Results --- Data Sets, and Cut Point 2D 1 corresponding to Solution 1, Cut Point 2D 2 corresponding to Solution 2, Cut Point 2D 3 corresponding to Solution 3. After inputing the Point Data (I used expressions contain "h"), I press the plot button, but a problem occured, i.e. Cut Point 2D 3 can be drawed, but Cut Point 2D 1 and 2 cannot be drawed. It was so strange! I doubted the previous values of "h" were converd by the last value, is it true?
1. Define a parameter in Global Definitions, for example "h", and during definition of the Geometry, "h" was used
2. Add Parametric Sweep in Study, and the parameter is "h", the values are h1, h2, and h3 for example
3. After computation, in Results --- Data Sets, I add three Solutions, Solution 1 corresponding to h=h1, Solution 2 corresponding to h=h2, and Solution 3 corresponding to h=h3.
4. After step 3, I add three Cut Point 2D under Results --- Data Sets, and Cut Point 2D 1 corresponding to Solution 1, Cut Point 2D 2 corresponding to Solution 2, Cut Point 2D 3 corresponding to Solution 3. After inputing the Point Data (I used expressions contain "h"), I press the plot button, but a problem occured, i.e. Cut Point 2D 3 can be drawed, but Cut Point 2D 1 and 2 cannot be drawed. It was so strange! I doubted the previous values of "h" were converd by the last value, is it true?
3 Replies Last Post Nov 5, 2010, 2:33 p.m. EDT
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Posted:
1 decade ago
Hi
I suspect you have a naming conflict, many single letter characters lower/upper case are already used by Comsol, and COMSOL cannot always tell if you want to change its internal variable or if you are having a naming conflict.
I would avoid "h" and replycit my "my_h" or something more "personal"
It might not be the full story of your case though
--
Good luck
Ivar
I suspect you have a naming conflict, many single letter characters lower/upper case are already used by Comsol, and COMSOL cannot always tell if you want to change its internal variable or if you are having a naming conflict.
I would avoid "h" and replycit my "my_h" or something more "personal"
It might not be the full story of your case though
--
Good luck
Ivar
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Hi
I suspect you have a naming conflict, many single letter characters lower/upper case are already used by Comsol, and COMSOL cannot always tell if you want to change its internal variable or if you are having a naming conflict.
I would avoid "h" and replycit my "my_h" or something more "personal"
It might not be the full story of your case though
--
Good luck
Ivar
Thanks, Ivar!
I tried your method, but it didn't work.
In addition, still the doubt "the last parameter value of h covered the previous two values" that is "after doing parameterized geometry, the values of the parameters for each solution will be the last value", because I can draw Cut Point 2D 3, but not for Cut Point 2D 1 and 2.
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Hi
I suspect you have a naming conflict, many single letter characters lower/upper case are already used by Comsol, and COMSOL cannot always tell if you want to change its internal variable or if you are having a naming conflict.
I would avoid "h" and replycit my "my_h" or something more "personal"
It might not be the full story of your case though
--
Good luck
Ivar
Hi, Ivar, my problem is the same as the one in this message www.comsol.com/community/forums/general/thread/9521/#p24680. But I still don't know how to solve it after reading