k- ε Turbulence Model for Each Phase

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  • Last Post 26 March 2019
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feceng posted this 23 March 2019

Hellow,

I am studying Fluent's model “k- ε Turbulence Model for Each Phase “, available in the chapter 17.5.16.1.3 of the Fluent Theory Guide.

Does anyone know where this comes from? I mean, I need to know what are the scientific works that derived this model.

Thanks.

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abenhadj posted this 24 March 2019

Multiphase turbulence modelling comes from building up the second moment of the momentum equation of each phase and some other assumptions and it might end up with two modeled equations. It is the same as single phase. The only issue is the coupling and this is pure academia and state of research.

Best regards,

Amine

feceng posted this 26 March 2019

Dear Amine, thank you for your answer. In fact, this a very complex issue still on development.

Besides the question regarding the reference work for this k-e model, I have another question. I have not found the description for the terms with the subscript “l”, “lq” and “ql” in the eq. (17-340) and (17-341). I suspect the subscript “l” denotes the secondary phase, stated as “p” in the previous equations.

These terms are highlighted in the picture bellow.

Maybe you or somebody else could help me.

Best regards,

Flavio

abenhadj posted this 26 March 2019

L is the dispersed phase. I will ask for documentation enhancement. Please mark this as Is Solved.

Best regards,

Amine

feceng posted this 26 March 2019

Great. Thank you for the answer.

Best regards,

Flavio

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