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Is there error in this vorticity plot

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Old   November 5, 2007, 20:55
Default Is there error in this vorticity plot
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Quarkz
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Hi,

I'm trying to simulate an naca0012 airfoil oscillating in a flowfield. Re~10,000

I've got this vorticity plot

http://usera.imagecave.com/quarkz/temp_vorticity.jpg

Unlike other vorticity plots, which have orderly vortices being shed, this one doesn't seem "normal". Is there something wrong with my code?

Or how do I anaylze vorticity plots like this? Is there any book which have a good discussion on these?

Thanks alot!
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