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Boundary Integration / Integration Order

Posted May 4, 2010, 8:15 p.m. EDT 2 Replies

Omar Canales
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Hello there,

I'm performing a boundary integration to get normal current density. I have used a swept mesh over my entire device. Does it imply I have to change the integration order? I get a value for integration order 1 and for integration orders: 2, 3 and "Auto" I get another higher value (2,3 and "Auto" release same value). For some reason I think order 1 release a value more realistic.

BTW: The function involved in this boundary is of the form x cosh (y) where x and y variables are coming from solutions of other modules.

Thanks in advance,

-Omar
2 Replies Last Post May 6, 2010, 1:34 a.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago May 5, 2010, 1:37 a.m. EDT
Hi

I consider the integration order as basically step integration (1), triangular (2) (I might be off by one havnt checked) or higher order polynomial fit integration, so I usually use higher orders such as 2 or 4

But it's true one could check ona second or third order equation just as a verification

Have fun Comsoling
Ivar
Hi I consider the integration order as basically step integration (1), triangular (2) (I might be off by one havnt checked) or higher order polynomial fit integration, so I usually use higher orders such as 2 or 4 But it's true one could check ona second or third order equation just as a verification Have fun Comsoling Ivar
Omar Canales
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Posted: 1 decade ago May 6, 2010, 1:34 a.m. EDT
Ivar: Thanks!
Ivar: Thanks!

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