Hi
You talked about probable units issues, by default, even if your geometry is in [um], the coordinates x,y,z are in SI or [m] by default so "(59<x)" means "True if x smaller than 59[m]", and you might have wanted 59[um], or ?
In which case I would write (59<x[1/um]), as Boolean operator expect unit less values
I do not believe that COMSOL defines a surface normal for a Results - Data Set - "Cut plane" I would have to dig into the doc to check but look at the "advanced" features. But "my way" is mostly to define an internal boundary, then the normal is defined thereon (remains to know or display with a coordinate plot, what is "up" and "down") and you can always use Booleans to restrict the area of interest.
You must check with support if there might be some internal errors in your version, what I doubt, or to update to a more recent one
Check also the blog page www.comsol.eu/blogs/computing-...al-normal-flux-planar-surface/
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Good luck
Ivar
You talked about probable units issues, by default, even if your geometry is in [um], the coordinates x,y,z are in SI or [m] by default so "(59<x)" means "True if x smaller than 59[m]", and you might have wanted 59[um], or ?
In which case I would write (59<x[1/um]), as Boolean operator expect unit less values
I do not believe that COMSOL defines a surface normal for a Results - Data Set - "Cut plane" I would have to dig into the doc to check but look at the "advanced" features. But "my way" is mostly to define an internal boundary, then the normal is defined thereon (remains to know or display with a coordinate plot, what is "up" and "down") and you can always use Booleans to restrict the area of interest.
You must check with support if there might be some internal errors in your version, what I doubt, or to update to a more recent one
Check also the blog page www.comsol.eu/blogs/computing-...al-normal-flux-planar-surface/
--
Good luck
Ivar