Radial Direction contours
 

Hi,

I am trying to evaluate variables on a given radius (i.e. what's the max. velocity in the inlet plane at R= xx [m]).

The only way I've found to create the circular lines of constant radius on which I evaluate the quantities is to make a contour of Radial Direction and then create polylines from the contours. This would work but the contour itself is far (really far!) from being circular. Does anyone know why ?

I've also tried creating my own Radial Direction [R=(x^2+y^2)^0.5] and things got a little better but I still have trouble (non-circular countours) in the region aroung R <= 0.05 [m].

Do you see any workaround ?

Thanks, Felix