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[Moving Mesh] Changing unit (dm>mm) leads to inverted mesh

Jean-Christophe Lavocat

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Hello,

I have a model which works well when I use a macroscale (like meters), but, when I change the scale (millimeters), the calculation leads to inverted meshes.

As I changed everything in the same proportion, I have expected that only the physics would change (here Navier-Stokes > Stokes flow), but apparently some geometry/meshes are also changed.

Could you give me some hints on what to look for, because I really don't understand this behaviour.

Thank you in advance

1 Reply Last Post 16 set 2010, 08:05 GMT-4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

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Posted: 1 decade ago 16 set 2010, 08:05 GMT-4
Hi
check carefully the new sizes of your model, depending if you hit the scale values check box, COMSOL's logic was not the same as mine, so I had too some surprises in the beginning. ;)

--
Good luck
Ivar
Hi check carefully the new sizes of your model, depending if you hit the scale values check box, COMSOL's logic was not the same as mine, so I had too some surprises in the beginning. ;) -- Good luck Ivar

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