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-   -   how to define turbulent intensity in 2d problem (https://www.cfd-online.com/Forums/fluent/50024-how-define-turbulent-intensity-2d-problem.html)

 blueberry December 10, 2008 22:25

how to define turbulent intensity in 2d problem

Dear all, I knew that for the 3-dimensional problem, the turbulent intensity can be obtained by I=sqrt(2*K/3)/Uref. But for the two-dimensional problem, will it formula still can be use? I thought for 2-dimensional problem, only u,u',v,v' can be solved. So will the formula become like this: I=sqrt(K)/Uref. Your kindly advice will be greatly appreciated!

 sarali March 13, 2013 10:09

Quote:
 Originally Posted by blueberry ;155359 Dear all, I knew that for the 3-dimensional problem, the turbulent intensity can be obtained by I=sqrt(2*K/3)/Uref. But for the two-dimensional problem, will it formula still can be use? I thought for 2-dimensional problem, only u,u',v,v' can be solved. So will the formula become like this: I=sqrt(K)/Uref. Your kindly advice will be greatly appreciated!
I have the same problem and I think for 2D I would be I=sqrt(K)/Uref. have you got any answers regarding that?

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