Fluent DPM particle tracking shows multiple injections. -- CFD Online Discussion Forums

October 23, 2020, 09:36	Fluent DPM particle tracking shows multiple injections.	#1
derangednuts New Member Sheng Chen Join Date: Oct 2020 Posts: 1 Rep Power: 0	Hi all, I am trying to model a person coughing by injecting water droplets at 22m/s for 0.5s. I set the start and stop time to be 0 and 0.5s. But in the results I see injections occurring for 0.5s but it reoccurs repeatedly over the course of 10s that I simulated. I used surface injection and a mass flowrate of 0.00034kg/s. How can I keep the number of injections to just 1. Does "Number of diameters" option matter? Thank you!

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