|February 14, 2003, 09:08||
boundary layers and k-w model
I'm trying to create a compressible turbulent boundary layer profile to fit experimental data from a supersonic flat plate test case.
The reason I need an analytical profile is to act as an inlet to the computational domain, as the experimental data doesn't go into the viscous sublayer.
I am using the Wilcox k-w turbulence model so therefore require profiles not only for the velocity, temperature, density etc.. but also for the k (turbulent kinetic energy) and omega (specific dissipation rate) from the viscous sublayer through to the boundary layer edge.
The velocity, temperature and density profiles seem okay but I am having trouble finding references on how to specify the k and omega profiles for compressible flat plate cases.
I'd have thought that this is something turbulence modellers do on a regular basis so can any of you guys let me know of any good references that specify exactly how to create the k and omega throughout the whole boundary layer. (I have the Wilcox book)
or alternatively what you turbulence modellers usually use in a case like this.
Also, can anybody tell me what Wilcox uses to create the initial boundary layer profile in the EDDYBL code?
Thanks in advance for any help and advice
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