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calculation errors in comsol

Posted 17 mars 2010, 05:24 UTC−4 1 Reply

Alex Zinchenko
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Dear all,

Does anybody know how to estimate errors in calculations caused by mesh size.

Thanks in advance,
Alex
1 Reply Last Post 17 mars 2010, 09:05 UTC−4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 17 mars 2010, 09:05 UTC−4
Hi Alex

my way is to refine once, resolve and compare the results, but smethimes the errors are very local (stress concetration or E field concetration around sharp edges) then an adaptive meshing refinement is often better than a global refinement

Thre should be a residual variable somewhere too, check in the doc

Good luck
Ivar
Hi Alex my way is to refine once, resolve and compare the results, but smethimes the errors are very local (stress concetration or E field concetration around sharp edges) then an adaptive meshing refinement is often better than a global refinement Thre should be a residual variable somewhere too, check in the doc Good luck Ivar

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