aerosol-properties-Euler or DPM?

If my research (temporary) focus is how to show the Particles Velocity Magnitude (m/s) in any time (and or space ) AND the Particles trajectory in time by time (and or space), what Method should I use?...Eulerian or DPM ?

Because NH [emailing: Injection Modeling, 2007] not sure which method works better, but do know that DPM can track the particles and velocity of the particles very easily, Lasman already write verification in page or folder: Aerosols-Properties-DPM or FPM? Have a nice look!.

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