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Domain plots
Posted Jul 6, 2010, 5:23 p.m. EDT Heat Transfer & Phase Change, Modeling Tools & Definitions, Parameters, Variables, & Functions, Structural Mechanics Version 5.2 9 Replies
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Hi,
I used to effectively generate contour plots of expressions defined in interior (also exterior) boundaries in Comsol 3.5 with the Domain Plot postprocessing options.
Any idea of how to do the same in Comsol 4? Thanks.
I used to effectively generate contour plots of expressions defined in interior (also exterior) boundaries in Comsol 3.5 with the Domain Plot postprocessing options.
Any idea of how to do the same in Comsol 4? Thanks.
9 Replies Last Post Jun 10, 2016, 10:12 a.m. EDT
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Posted:
1 decade ago
Yeah, I met the same problem. I try to find a way to display results for one subdomain or certain subdomains in Comsol 4.0. However, there is no Suppress command under the options menu as we can see in Comsol3.5.
I tried to establish another solution in Results, and chose the certain subdomains and plotted, but it did not work.
Is there any idea?
Thanks in advance!
I tried to establish another solution in Results, and chose the certain subdomains and plotted, but it did not work.
Is there any idea?
Thanks in advance!
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Posted:
1 decade ago
There seems to be a way by using the option 'selection' in the solution data set (e.g. solution1). When the selection is added one can select the domains of interest. The solutions in the chosen domains can then be displayed in 3D plots. This works fine. However, I do not seem to find a way to display solutions in 2D plots in case of boundary selections, as it used to be in v3.5.
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Posted:
1 decade ago
Hi
Have ou tried to do a right click on the "Data Set" and add a "Cut plane" at you coordinate of interest, then you can make a 2D surface plot of this "cut plane data" (as a sub-selection of the global 3D solution) In fact with the right clicks you can add several levels of plot options, including changing x axis expressions .
There is still quite a lot for COMSOL to document but you have mostly everything in the plottings options, once you find out where to look
Good luck
Ivar
Have ou tried to do a right click on the "Data Set" and add a "Cut plane" at you coordinate of interest, then you can make a 2D surface plot of this "cut plane data" (as a sub-selection of the global 3D solution) In fact with the right clicks you can add several levels of plot options, including changing x axis expressions .
There is still quite a lot for COMSOL to document but you have mostly everything in the plottings options, once you find out where to look
Good luck
Ivar
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Posted:
1 decade ago
There seems to be a way by using the option 'selection' in the solution data set (e.g. solution1). When the selection is added one can select the domains of interest. The solutions in the chosen domains can then be displayed in 3D plots. This works fine. However, I do not seem to find a way to display solutions in 2D plots in case of boundary selections, as it used to be in v3.5.
Hi guys,
@ Toni Lopez
I am trying to surpress certain domains in a 3D-plot and I followed your description, without success.
Creating the selection and adding domains to this selection was a piece of cake, but what to do next?
I am not able to modify or create new plots regarding the selection. At this point your description seems a little weak to me. Maybe you can explain in detail how it could be done.
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Posted:
1 decade ago
Hi
there are two things one can do: select a view to "hide" items (objects or entitites), to avoid that these are plotted, for that in the Definitions node you add a view, and add a subnode hide entity or hide objects depending on what yu would like to hide. These items are then not shown of he later graphs if this view is actif.
Then you can take you solution, duplicate it or not, add acopy but defined on a cut line, cut plane ... or other more or less complex operations on the solution set.
Check the doc and the help for these nodes
--
Good luck
Ivar
there are two things one can do: select a view to "hide" items (objects or entitites), to avoid that these are plotted, for that in the Definitions node you add a view, and add a subnode hide entity or hide objects depending on what yu would like to hide. These items are then not shown of he later graphs if this view is actif.
Then you can take you solution, duplicate it or not, add acopy but defined on a cut line, cut plane ... or other more or less complex operations on the solution set.
Check the doc and the help for these nodes
--
Good luck
Ivar
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Posted:
1 decade ago
Hi,
COSMOL version 4.1 includes new Surface and Edge data sets that make it possible to use 2D and 1D plot groups to create, for example, a 2D contour plot on a boundary (face) in a 3D model (the equivalent of a domain plot in version 3.5).
It is also possble to add a Selection subnode to a Solution data set to exclude some domains or boundaries from, for example, 3D surface plots using that solution.
Best regards,
Magnus Ringh, COMSOL
COSMOL version 4.1 includes new Surface and Edge data sets that make it possible to use 2D and 1D plot groups to create, for example, a 2D contour plot on a boundary (face) in a 3D model (the equivalent of a domain plot in version 3.5).
It is also possble to add a Selection subnode to a Solution data set to exclude some domains or boundaries from, for example, 3D surface plots using that solution.
Best regards,
Magnus Ringh, COMSOL
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Posted:
9 years ago
Hi,
COSMOL version 4.1 includes new Surface and Edge data sets that make it possible to use 2D and 1D plot groups to create, for example, a 2D contour plot on a boundary (face) in a 3D model (the equivalent of a domain plot in version 3.5).
It is also possble to add a Selection subnode to a Solution data set to exclude some domains or boundaries from, for example, 3D surface plots using that solution.
Best regards,
Magnus Ringh, COMSOL
Hey there Magnus, I don't suppose you might be able to help me figure out how to make a 2D deformation plot based on the data from the face of a 3D model?
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Posted:
9 years ago
Hello Nicholas,
Let me assume that the face in question is planar. Depending on what you'd like your plot to look like, you can
a/ Create a new data set that's a duplicate of your solution data set and apply a selection to restrict it to the face in question, then use the newly created data set for a new 3D plot group with a surface plot, itself with a deformation feature, see attached file.
or
b/ Create a Surface data set based on the face you want and add a surface plot in a 2D plot group based on that Surface data set, see attached file.
If the face is not planar, the former approach is likely what you'll want to follow.
Best,
Jeff
Let me assume that the face in question is planar. Depending on what you'd like your plot to look like, you can
a/ Create a new data set that's a duplicate of your solution data set and apply a selection to restrict it to the face in question, then use the newly created data set for a new 3D plot group with a surface plot, itself with a deformation feature, see attached file.
or
b/ Create a Surface data set based on the face you want and add a surface plot in a 2D plot group based on that Surface data set, see attached file.
If the face is not planar, the former approach is likely what you'll want to follow.
Best,
Jeff
Attachments:
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Posted:
9 years ago
Got it. It is planar and at first I used a cut plane but then I chose to create a data set where I selected the surface of the undeformed geometry that I was interested and the results seemed a bit better. Thanks for the quick reply.