About Parcels centroid - strange CCM representation
 

Hello

I am dealing with injection of droplets into a straight pipe where stand a static mixer.

While plotting the droplets centroid (Z-coordinate), the CCM plot looks strange (see the attached picture).
After the mixer, it seems that each parcels get a centroid corresponding to the injection one. Does anyone has some idea about this matter?

Thank you
(and also, I never success to plot 'spherical' droplet, if someone has a hint)