Continous, multiple DPM injections to approximate particle volume fraction
 

Hi,

I'm doing a study on nanofluid heat transfer. The first step in my study is to try to simulate the particle volume fraction for any given volume domain.
How can I use multiple injections from the inlet surface so that after a period of time the number of particle in the domain will correspond with simple hand calculation? (let say for example for 0.05 particle volume fraction, the number of particles calculated were around 50k)
Or, if there is any suggestion in achieving my objective would be appreciated. Thank you in advance!

Regards,
Kamal