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-   -   newer version of Fluent/ CFX Vs. CFX11?!? (http://www.cfd-online.com/Forums/cfx/88741-newer-version-fluent-cfx-vs-cfx11.html)

mohammad May 24, 2011 23:06

newer version of Fluent/ CFX Vs. CFX11?!?
 
Hey;
I'm simulating the NREL wind turbine model with CFX11 but I want to use a newer version of Fluent/CFX.

At this stage, my plan is to investigate the different turbulent models( DES, SST, SA) and transitional flow.

I have some questions now.

1- I read the REF[1] about a transitional model and its better prediction of wind turbine performance.
which software and which version ( Fluent or CFX) has this model ?

2-Do you have any information about the advantages of the newer versions of CFX/Fluent or over CFX 11 about the use of turbulent models? is there any newer turbulent option or influential modification available in newer versions of CFX/Fluent that can really affect the results?


Reference
[1]-Predicting 2D Airfoil and 3D Wind Turbine Rotor Performance using a Transition Model for General CFD Codes; R.B. Langtry, J. Gola, and F.R. Menter , AIAA; 2006

mohammad May 26, 2011 03:13

It's available. for more info see the following link...

http://www.cfd-online.com/Forums/cfx...tml#post309290

Good Luck:)

ghorrocks May 26, 2011 06:41

CFX has the transition model. Not sure about Fluent, I think V13 has it but I am not sure.

The reference you quote is an excellent one, it shows the benefits of the turbulence transition model in CFX. I think this is a strong argument to use the turbulence transition model in CFX as that paper shows it works well. It will hopefully also give you some tips of how to implement it properly.

mohammad May 26, 2011 09:38

Quote:

Originally Posted by ghorrocks (Post 309325)
CFX has the transition model. Not sure about Fluent, I think V13 has it but I am not sure.

Google the title of " Ansys Fluent 12 - what's new?" or visit "http://www.cfx-berlin.de/de/news/200..._Whats_New.pdf"
it says that:
Turbulence has been an area with active sharing between the FLUENT and CFX functional groups.Turbulent transition modeling is available in FLUENT 12.


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