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Volume average

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Hi,

I have a question about volume average. If the mesh contains nodes of different sizes is this accounted for in the volume average? (i.e, when calculating average force in a volume, is the result a summation of forces/node size or just the force?)

if there is no division by node area then is it possible to get this information?

thanks

1 Reply Last Post 2011/12/12 16:17 GMT-5
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

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Posted: 1 decade ago 2011/12/12 16:17 GMT-5
Hi

from my understanding the average in v4 is a shortcut for "intop1(whatever)/intop1(1)" where intop1(1) = volume and means the volume integration of operand "1*dx*dy*dz" (hence the element size is included de facto). In 3.5 one had to write it out like that, it's easier now in V4

for a surface average it's the same, but there the double integration normalisation gives the Area, etc.

--
Good luck
Ivar
Hi from my understanding the average in v4 is a shortcut for "intop1(whatever)/intop1(1)" where intop1(1) = volume and means the volume integration of operand "1*dx*dy*dz" (hence the element size is included de facto). In 3.5 one had to write it out like that, it's easier now in V4 for a surface average it's the same, but there the double integration normalisation gives the Area, etc. -- Good luck Ivar

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