DPM Single Particle

greg_2666 · February 18, 2016, 07:09

Hi,

I need to look at a single particle in a cylinder that is rotating - it's the inspection process for contaminated syringes.

I can't seem to find any guides on particle modelling that don't use an inlet.

I've tried doing it myself but nothing seems to be visible.

Has anyone done something similar?

Thanks a lot,

Greg

CFDYourself · February 19, 2016, 07:41

Hi Greg,
You need to provide a injection point for your particle. This'll be a point location where your particle is introduced. This shouldn't require a fluid "inlet" in the domain.

CeesH · February 22, 2016, 10:10

Also note that you need to run your simulation in transient mode, as their are no complete trajectories from an in to an outlet. And, as far as I know at least, you won't easily 'see' the particle track, FLUENT itself only visualizes the instantaneous position of the particle. To see the history, you can export an xml file with the trajectories (visualizable with CFD post), or export the trajectories otherwise, using an UDF or so.

February 18, 2016, 07:09	DPM Single Particle	#1
greg_2666 New Member Gregory Hannam Join Date: Mar 2015 Posts: 7 Rep Power: 11	Hi, I need to look at a single particle in a cylinder that is rotating - it's the inspection process for contaminated syringes. I can't seem to find any guides on particle modelling that don't use an inlet. I've tried doing it myself but nothing seems to be visible. Has anyone done something similar? Thanks a lot, Greg

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February 19, 2016, 07:41		#2
CFDYourself Member Jim Join Date: May 2015 Posts: 47 Rep Power: 11	Hi Greg, You need to provide a injection point for your particle. This'll be a point location where your particle is introduced. This shouldn't require a fluid "inlet" in the domain.

February 22, 2016, 10:10		#3
CeesH Senior Member Cees Haringa Join Date: May 2013 Location: Delft Posts: 607 Rep Power: 0	Also note that you need to run your simulation in transient mode, as their are no complete trajectories from an in to an outlet. And, as far as I know at least, you won't easily 'see' the particle track, FLUENT itself only visualizes the instantaneous position of the particle. To see the history, you can export an xml file with the trajectories (visualizable with CFD post), or export the trajectories otherwise, using an UDF or so.