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trouble creating geometry using boolean operations
Posted 5 sept. 2017, 18:03 UTC−4 Geometry 1 Reply
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Hi,
I was trying to create a geometry in COMSOL with boolean operations but do not know how to proceed. The geometry I want includes everything in the big circle, including the boundary of the big circle, as shown in the attached file original.png. If I do a intersect of the big circle and the union of small circles, it gives the graph after_intersection.png, which excludes other areas inside the big circle. I guess what I am trying to do is a partition of A(big circle) based on B(small circles), then delete parts of B that is outside A. Could anyone give me some instructions on how to do this in COMSOL? Thank you.
I was trying to create a geometry in COMSOL with boolean operations but do not know how to proceed. The geometry I want includes everything in the big circle, including the boundary of the big circle, as shown in the attached file original.png. If I do a intersect of the big circle and the union of small circles, it gives the graph after_intersection.png, which excludes other areas inside the big circle. I guess what I am trying to do is a partition of A(big circle) based on B(small circles), then delete parts of B that is outside A. Could anyone give me some instructions on how to do this in COMSOL? Thank you.
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1 Reply Last Post 5 sept. 2017, 18:36 UTC−4
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Posted:
7 years ago
I think I already answered my own question when I describe it. To get such geometry, you just need to do a partition operation on A based on B, then the domain will be partitioned into 4 subdomains, on which one can define different physics. The parts of B that are outside A will be deleted automatically.