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-   -   2D to 3D turbulence (http://www.cfd-online.com/Forums/main/113795-2d-3d-turbulence.html)

canopus February 26, 2013 18:33

2D to 3D turbulence
 
Hi!
I want to perform a cheap DNS for a rectangular jet surrounded by coflow.
The geometric configuration is-
inhomogeneous normal in y-dir
inhomogeneous streamwise in z-dir
homogeneous spanwise x-dir is periodic


The question is what should be the domain extent in x direction
so that I get a 3D turbulence and not a 2D one.
Can you suggest (or refer) domain extent in terms of geometry(slot width) or integral scale?

Thanks apriori


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