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-   -   modify k-e turbulence model (http://www.cfd-online.com/Forums/cfx/102577-modify-k-e-turbulence-model.html)

happy May 29, 2012 04:43

modify k-e turbulence model
 
Hi all,,
I model the buoyant jet in still atmosphere and at the same time I would like to use K-e model. Therough the reading of some textbook about the using k-e for modeling vertical buoyant jet in stagnent atmosphare, it should be modified the k-e, where its calculations of disspresion is less than kinetic production. so
does any one apply any modefication for k-e to model buoyant jet before to help me?
any input can help.
Best regards

ghorrocks May 29, 2012 07:41

CFX has some turbulence models which include modifications for buoyancy. Have a look in the documentation for them.

happy May 29, 2012 22:31

Png k-e
 
Quote:

Originally Posted by ghorrocks (Post 363547)
CFX has some turbulence models which include modifications for buoyancy. Have a look in the documentation for them.

Yes, there is PNG K-E; however, it was not good enough to predict the flow feild of buoyant jet.
Thanks in advance for helpful input

ghorrocks May 30, 2012 01:13

No, I am talkign about the SST model. It has specific buoyancy corrections available as options.


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