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 The information provided may be out of date.

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

bug in 2D plot?

Please login with a confirmed email address before reporting spam

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


1 Reply Last Post 2011年4月10日 GMT-4 17:35
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2011年4月10日 GMT-4 17:35
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

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.