Learning Forum

[JorgeP]

Hello dear friends,

So after I ran my simulation, I used CFD post to see the results. I want to see the results 200m (and others) above zmin. So I created an user surface, transposed 200m from wall and the used the contour to see. But when the results are displayed, some white/grey marks are appearing as is possible to see on the attached image. I've tried on different computers and the same is happening.

[das.3]

Try the following:
Disable the user surface and increase the number of contour lines(only the contour should be enabled). However, this would have a slight effect on the quality of contour, since I had also observed the same behaviour earlier
Instead of user surface, create a plane and plot the desired variable on the plane. This would yield a much better quality of contour

[JorgeP]

It worked ! i don't see significant differences in the quality of the contour though.
That unfortunately is not an option, because I do need to have the surface contour for better undestanding and explanation.

Thank you for your help !

[das.3]

That is what a plane does, you can simply define the plane as offset from surface, and you would get a plane similar to the user surface that you have created. Also that would yield a surface contour of better quality.