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Meshing a surface with an interior point

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I need to apply a point force on a point inside a shell surface. For this purpose I draw a point in geometry section. However, because of that point I can't mesh the surface with free quad or mapped. It is giving the error "isolated vertices found".

In some other softwares it is possible to pick nodes from the mesh for this purpose. But I couldn't figure out how to do that in COMSOL.

I appreciate any help.

Thanks
Bugra


1 Reply Last Post 2 mai 2013, 16:11 UTC−4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

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Posted: 1 decade ago 2 mai 2013, 16:11 UTC−4
Hi

the easiest way around is to cut your surface by two internal boundaries such that the point is at the location of two intersecting boundaries, then the quad mesh should still work and you can pick your "point", but be aware that point loads, in anything else than 1D models are singularities and give rather wrong results in the direct vicinity of the point

--
Good luck
Ivar
Hi the easiest way around is to cut your surface by two internal boundaries such that the point is at the location of two intersecting boundaries, then the quad mesh should still work and you can pick your "point", but be aware that point loads, in anything else than 1D models are singularities and give rather wrong results in the direct vicinity of the point -- Good luck Ivar

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