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Separation Point over a NACA 0012

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Old   March 22, 2007, 03:02
Default Separation Point over a NACA 0012
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Franny
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Hi all, I was wondering if anyone could help me with this problem.I m try to show that is possible to delay the separation over a NACA 0012 using vortex genereators into the sub-boundary layer.I ve done 4 2-D simulations at 4 different a0a in CFX.Now,as the separation happen,I need to determine the distance between the leading edge and the separation point to calculate the geometric dimension of the VGs.Anyone has a clue of how this can be done? After plotting streamlines and velocity vectors,I dont know how to do.Maybe plot the velocity on the polyline and export in Excel and see where the velocity goes down....It looks too rough as definition of an exect point. If you have an idea, please let me know it.

Thanks for now.

Franny

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Old   March 22, 2007, 04:26
Default Re: Separation Point over a NACA 0012
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Jonas Larsson
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When looking at separating airfoils I usually plot surface skin friction in the streamwise direction in order to specify where it is close to zero and the separated region begins.
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Old   March 22, 2007, 04:33
Default Re: Separation Point over a NACA 0012
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Charles
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Plot the shear stress
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Old   March 22, 2007, 15:49
Default Re: Separation Point over a NACA 0012
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Franny
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Thank you very much guys.

Franny
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