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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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bug in 2D plot?

Posted Apr 10, 2011, 1:11 p.m. EDT Results & Visualization Version 4.0a 1 Reply

Mauro Lopes
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In a Transport of Diluted Species model (2D, just one rectangular domain) I defined the velocity field as following: x component = y*(1-y), and y component = 0. Obviously, a surface plot of the x component of the velocity field looks like the figure 1 (see attached file). But, if a non-uniform mesh is used the surface plot obtained is totally unexpected (figure 2). Line graphs along the x and y direction retrieves the correct field velocity (figures 3 and 4). Is this only a bug on the post-processing or is affecting the calculations?

Thanks

Mauro

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1 Reply Last Post Apr 10, 2011, 5:35 p.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Apr 10, 2011, 5:35 p.m. EDT
Hi

indeed it looks strange, have you tried in v4.1, with latest patch, there are several issues corrected since the early 4.0

--
Good luck
Ivar
Hi indeed it looks strange, have you tried in v4.1, with latest patch, there are several issues corrected since the early 4.0 -- Good luck Ivar

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