[kaveh0a]

Hi guys
I am trying to simulate a particle tracking project in a 90 bend with DPM model in fluent 14. the viscous model is RSM-EWT. In DMP model i set the " Max number of steps" to 5000 and " step length factor" to 5. there is no interaction between particle-particle and particle-continuous phase. I have used Rungt-kutta method for "tracking scheme".
I also created an injection with this following option:
injection type: surface-inlet
particle type: inert
inject using face normal direction:
d=4.7e-06 m
v=18 m/s
flow rate=1.2e-09 kg/s
this is equal to 25000 particle.
in every run that i have performed just 336 particle were tracked.
I have changed the flow rate,velocity,diameter,number of steps but in all cases results were same.
Can any one help me to solve this problem?