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Plotting the mesh of a cut plane through a 3D model
Posted 19 mar 2013, 23:06 GMT-4 Geometry, Mesh, Results & Visualization Version 5.2 6 Replies
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So i am currently doing some simulation involving parallel plate capacitors and i just want to see the difference between the meshes outside and within the capacitor.
I've tried to create a plot of the mesh in the "results" section but there isn't a way for me to plot the mesh. I can only plot from the "solutions". Am i approaching this from the wrong direction? Is there a way i can maybe direct the cut plane to take its "data" from the "mesh"? Any ideas guys?
I hope my questions are clear enough.
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If you have a cut plane from your 3D solution, you can add a surface plot with geometry -> mesh quality (qual).
Ralf
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I have no other way known than to use the "filter" with a Boolean function such as (x>0) to see the cut for the positive X plane, or to cut your model with an internal boundary, then you get the mesh on the boundary
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Good luck
Ivar
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Thank you for the prompt reply.
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I got what i needed from Ralf's suggestion but i am curious on your method. I am relatively new to COMSOL, so could you elaborate more on what you mean?
Is there a feature/function to be used in COMSOL or do you mean I could use a boolean operation/expression in a data set?
Lu Quan
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here is a simple example, by defualt you have the surface mesh appeaing, you can adapt that from the Mesh node tabs
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Good luck
Ivar
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Right click "Data Sets" in v5.2 and select "Mesh"
Then create 3D Plot Group:
Right click "Results" in v.5.2 and select "3D Plot Group"
Data set for the 3D Plot Group should be the mesh data set you just created.
Next create Mesh node under the 3D Plot Group:
Right click "3D Plot Group" and select "Mesh"
Data set for the Mesh node should be "From parent"
Finally, use logical expression under "Element filter" in the Mesh node:
For example, the expression could be z>1 to show elements with z>1.
The element filter effectively creates a "cut plane" and reveals the elements cutting that plane.
The elements can be colored by element quality:
3D Plot Group > Mesh node > Color > Element color : Quality
Or the elements can be colored white, and the edges of the elements black:
3D Plot Group > Mesh node > Color > Element color : White
3D Plot Group > Mesh node > Color > Wireframe color : Black
-DW