Particle flow

Steve M

i am trying to view flow over a rigid body (vehicle geometry) using fluent and can obtain picture of pressure gradients etc. but cannnot seem to release particle streams to see how the flow moves over it as anything i do just results in a single dot in the picture screen. I also don't know how to obtain results for the lift / drag a difering speeds.

If anyone could direct me to somewhere i may read about doing this i would be thankfull.

Steve M