Particle volume fraction more than 70% in cfx

mahde1818 · February 19, 2015, 10:36

hi to all
is it possible to use particle volume fraction more than 70% in cfx(dispersed particles)
i want to simulate tank with dispersed sand and continuous air. if air suck up sand volume fraction increase .can i do it with cfx ? what about fluent?

mahde1818 · February 19, 2015, 11:01

Quote:

Originally Posted by mahde1818

hi to all
is it possible to use particle volume fraction more than 70% in cfx(dispersed particles)
i want to simulate tank with dispersed sand and continuous air. if air suck up sand volume fraction increase .can i do it with cfx ? what about fluent?

plz help

ghorrocks · February 19, 2015, 17:03

Yes, you can always use high volume fractions like 70%. Whether it will be accurate or not is another matter.

Eularian particle model can handle higher volume fractions than lagrangian particle tacking in CFX.

BachelorM7 · October 21, 2015, 06:05

Did you set the sand to "dispersed solid" and air = "continuous fluid" ?

mahde1818 · October 22, 2015, 05:41

Quote:

Originally Posted by BachelorM7

Did you set the sand to "dispersed solid" and air = "continuous fluid" ?

Thanks but I did my project week ago lol

BachelorM7 · October 22, 2015, 05:43

It was a question because I sit with a similar problem.

February 19, 2015, 10:36	Particle volume fraction more than 70% in cfx	#1
mahde1818 New Member mehdi Join Date: Feb 2015 Posts: 9 Rep Power: 11	hi to all is it possible to use particle volume fraction more than 70% in cfx(dispersed particles) i want to simulate tank with dispersed sand and continuous air. if air suck up sand volume fraction increase .can i do it with cfx ? what about fluent?

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February 19, 2015, 17:03		#3
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Yes, you can always use high volume fractions like 70%. Whether it will be accurate or not is another matter. Eularian particle model can handle higher volume fractions than lagrangian particle tacking in CFX.

October 21, 2015, 06:05		#4
BachelorM7 New Member Join Date: Oct 2015 Posts: 11 Rep Power: 10	Did you set the sand to "dispersed solid" and air = "continuous fluid" ?

October 22, 2015, 05:43		#6
BachelorM7 New Member Join Date: Oct 2015 Posts: 11 Rep Power: 10	It was a question because I sit with a similar problem.