Discussion Forum

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