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Old   March 20, 2002, 06:02
Default Multiphase + Multicomponent
  #1
Thitikorn
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I use Fluent v4.5 (really new user) And I have problem to simulate model have Multiphase+Multicomponent. I have sample case.

Assume if I want to simulate water in half volume of tank (close system) and air in another half one and water is evaporated to H2O vapor then mix with air I want to see profile of fraction of H2O vapor and air in gas phase. How can I simulate it?

I try to add species of H2O(v) and air in phase AIR and add only species of H2O(l) in phase WATER. I don't know to add mass exchange between H2O(v) & H2O(l) in 2 phase.

Or I have to use another version of Fluent. Anybody help me please.

Thitikorn.
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Old   March 20, 2002, 13:05
Default Re: Multiphase + Multicomponent
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Jerry
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as I know, Fluent is not good to sumulate two-phase problems.
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Old   March 20, 2002, 14:28
Default Are you serious?
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Thitikorn
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Dear Jerry,

Do you think Fluent can't simulate multiphase+multicomponent model? But in manual of Fluent tell me it can simulate (but don't have example for me ;..( )

And my research have to use fluent to simulate too. (It is my advisor idea.) So. How can I do for my research?

I don't know, Can I use UDS to solve my problem? Because now I can't compile and link my UDS to Fluent. (I am ordering Absoft Pro Fortran v7.0 for compiler)
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Old   March 21, 2002, 04:32
Default Re: Are you serious?
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Yvonne
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Hi! I'm working with a two-phase-flow. I'm using the Euler-Euler-model but can't really tell something too exciting, yet. Anyhow I think you should use the mixture model and I have no experience with it. just try it and you#ll see. Or, if you have the possibility to use CFX (another CFD-Software), try that. As far as I heard, they have more experience with multi-phase-stuff, hence i guess they could be better. Good luck, Yvonne
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Old   March 21, 2002, 04:35
Default Re: Are you serious?
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Yvonne
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hi again! additional. I'm not too sure about the mixture model, so don't take that too serious. You should look really carefully, whether you use VOF, mixture or Euler-Euler. Yvonne
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Old   March 21, 2002, 04:38
Default Re: Are you serious?
  #6
Thitikorn
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Thanks Yvonne.

I see CFX can solve my problem. (from web of CFX) I may be try it.
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