particle concentration at a given point

sakurabogoda · March 25, 2014, 03:10

hi,
does anybody know how to get particle concentration at a given point in CFX post?

(Particle tracking model)

ghorrocks · March 25, 2014, 05:00

It is the volume fraction of the particle phase.

sakurabogoda · March 25, 2014, 05:08

hi Glenn,
Thanks a lot.
Then, to get volume fraction at a point, do i want to use monitor points?
I have tried to get it by CFX post by using function calculator and shows as zero.
Actually I am doing a sensitivity analysis for define number rate.

ghorrocks · March 25, 2014, 05:11

You can use a monitor point in the solver or a point object in CFD-Post. Both will work.

sakurabogoda · March 25, 2014, 05:23

if CFD post gives a value zero at a given point for volume fraction, does it mean no particle tracks pass through the point?

Many thanks for replies.

ghorrocks · March 25, 2014, 05:30

That would be what it is saying, yes.

March 25, 2014, 03:10	particle concentration at a given point	#1
sakurabogoda Senior Member S.Bogoda Join Date: Jul 2012 Posts: 133 Rep Power: 15	hi, does anybody know how to get particle concentration at a given point in CFX post? (Particle tracking model)

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March 25, 2014, 05:00		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,984 Rep Power: 145	It is the volume fraction of the particle phase.

March 25, 2014, 05:08		#3
sakurabogoda Senior Member S.Bogoda Join Date: Jul 2012 Posts: 133 Rep Power: 15	hi Glenn, Thanks a lot. Then, to get volume fraction at a point, do i want to use monitor points? I have tried to get it by CFX post by using function calculator and shows as zero. Actually I am doing a sensitivity analysis for define number rate.

March 25, 2014, 05:11		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,984 Rep Power: 145	You can use a monitor point in the solver or a point object in CFD-Post. Both will work.

March 25, 2014, 05:23		#5
sakurabogoda Senior Member S.Bogoda Join Date: Jul 2012 Posts: 133 Rep Power: 15	if CFD post gives a value zero at a given point for volume fraction, does it mean no particle tracks pass through the point? Many thanks for replies.

March 25, 2014, 05:30		#6
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,984 Rep Power: 145	That would be what it is saying, yes.