Convert VOF droplet to DPM particle via UDF

TedBrogan · February 24, 2011, 22:07

Does anyone know if it is possible to convert droplets stripped from surface waves of a VOF film into DPM particles using a UDF? Trying to capture the droplets with a high density mesh is too much CPU time. The idea would be to take droplets below a given size and convert them into particles so that droplet motion could still be captured with a greatly reduced CPU time.

I'm a novice with UDFs, and I'd like to know if anyone thinks so a UDF is possible in FLUENT. If so, any helpful thoughts, strategies, etc. would be greatly appreciated.

Thanks,
Ted

dunga82 · May 1, 2012, 11:01

Hi, TeaBrogan,
I have the same idea as you.
What I think is to take droplets below a given size and convert them into particles. My thoughts are minus the droplets from VOF term and add the mass source and energy source to DPM.
But I don't know it could be successful or not?

February 24, 2011, 22:07	Convert VOF droplet to DPM particle via UDF	#1
TedBrogan New Member patty Join Date: Nov 2010 Posts: 21 Rep Power: 15	Does anyone know if it is possible to convert droplets stripped from surface waves of a VOF film into DPM particles using a UDF? Trying to capture the droplets with a high density mesh is too much CPU time. The idea would be to take droplets below a given size and convert them into particles so that droplet motion could still be captured with a greatly reduced CPU time. I'm a novice with UDFs, and I'd like to know if anyone thinks so a UDF is possible in FLUENT. If so, any helpful thoughts, strategies, etc. would be greatly appreciated. Thanks, Ted

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May 1, 2012, 11:01		#2
dunga82 New Member dengjiajia Join Date: Sep 2011 Posts: 14 Rep Power: 14	Hi, TeaBrogan, I have the same idea as you. What I think is to take droplets below a given size and convert them into particles. My thoughts are minus the droplets from VOF term and add the mass source and energy source to DPM. But I don't know it could be successful or not?