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-   -   Buoyancy turbulence model (http://www.cfd-online.com/Forums/cfx/99667-buoyancy-turbulence-model.html)

lakkinwong April 9, 2012 11:28

Buoyancy turbulence model
 
I am simulating a chimney stack model that uses buoyancy model. Originally, I have selected "none" on the buoyancy turbulence option. I realized the model is not that accurate since I compare the model results with the experimental results. Would changing the buoyancy turbulence option to "production and dissipation" help incrasing the accuracy of my model?

happy April 19, 2012 05:24

for your help
 
Quote:

Originally Posted by lakkinwong (Post 353786)
I am simulating a chimney stack model that uses buoyancy model. Originally, I have selected "none" on the buoyancy turbulence option. I realized the model is not that accurate since I compare the model results with the experimental results. Would changing the buoyancy turbulence option to "production and dissipation" help incrasing the accuracy of my model?

of course, because the TB model the production and dissipation which affect the temp. and velocity profile.
did you model chhimney in wind tunnel or in still atmosphare?:D
I did it before now.
Regards

lakkinwong April 20, 2012 12:17

Thanks
 
Thanks, I model the chimney in atmosphere.

happy April 20, 2012 23:58

question, plz
 
Quote:

Originally Posted by lakkinwong (Post 355864)
Thanks, I model the chimney in atmosphere.

did you use 2D or 3D for that?
and which model you are using to model?
did you publish your results yet?


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