Bug in Paraview reader? Color wrongly interpolated?
 

Hi guys,

What if you open the channel flow case and set an initial velocity in the internal field as a constant U_internal=UC, and using parafoam to see the velocity contour, I found the inlet and outlet cells are not colored as UC, but it seems to be (0+UC)/2.


I am using paraview 3.14.1, 64 bits, Ubuntu, of 2.1

Anyone can confirm my finding?

Hi 1/153 * dw :)

What's the representation form you're using? Namely, when you choose the field to be represented, is it the cell center mode or the point/vertex mode?

If it's the point mode, it's natural that you're picking up the "no-slip wall" boundary condition, where U is 0.

Best regards,
Bruno

Attachment 14976

See the inlet cells.

I am using point mode as I did before. No problem before, it must be something different in this version I guess.

And using paraFoam -builtin, I have no problem.

Does the same happen with a tutorial case such as "incompressible/simpleFoam/pitzDaily"?