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-   -   Particle tracking in multiphase flow (http://www.cfd-online.com/Forums/cfx/68475-particle-tracking-multiphase-flow.html)

fjalil September 21, 2009 15:37

Particle tracking in multiphase flow
 
Hi. I'm modelling a multiphase flow problem with particle tracking. The problem consists on a channel or launder where ther is water flowing in the bottom, and air on top (a typical open channel). For the inlet boundary condition I had to use a step function in order to say that water enters on the bottom and air on top. The thing is, now I have to inject particles with the water.

I get an error that the problem is not supported in CFX11, because I have two eulerian phases, air and water:

"In domain 'Domain 1': Particle tracking problems with more than one continuous eulerian phase are not supported."

What can I do? I've seen cases of air and water with particles. Does CFX 12 support this?

Thanks.

Regards,

Francisca Jalil

ghorrocks September 21, 2009 18:28

You have to set the particles as a disperse/discrete phase. You cannot have particles as a continuous phase.

ckleanth September 21, 2009 19:52

as gleen said, also read this http://www.cfd-online.com/Forums/cfx...tml#post230068

zeitoun May 26, 2010 19:41

Quote:

Originally Posted by ghorrocks (Post 230061)
You have to set the particles as a disperse/discrete phase. You cannot have particles as a continuous phase.

Ghorrocks, do you mean morphology option "Particle Transport Solid" is actually a continuous fluid ?
So just switching to morphology "Dispersed solid" will fix the issue ?

Thx


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