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-   -   Turbulence Models (http://www.cfd-online.com/Forums/fluent/102214-turbulence-models.html)

oborona May 25, 2012 03:35

Turbulence Models
 
Hello!

Can I use two turbulence models in the one domain?
:confused:

Far May 25, 2012 06:29

No. Not possible.

SST is combination of two models : K-Epsilon and K-omega, but only limited to core flow and boundary layer respectively.

oborona May 25, 2012 06:47

Thanks. it is a pity. I can't use SST model to model flow with combustion.

Far May 25, 2012 07:02

However you can choose DES or DDES model. Also you can go for Embedded LES (E-LES)

macfly May 25, 2012 23:39

Quote:

Originally Posted by oborona (Post 363085)
Thanks. it is a pity. I can't use SST model to model flow with combustion.

Hi,

Why can't you use SST for combustion? I'm about to start my turbulent combustion modeling, I'm in the process of choosing my model. And if I start Fluent and I choose the k-w SST turbulence model, most of combustion models are still available (from a quick look).

I'm probably missing something... can you please to enlighten me?

oborona May 28, 2012 06:36

I think I was wrong. I have the out-dated information that combustion models need the epsilon-equation but not omega-equation. But as was found I can use SST model with combustion.


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