Reynolds number for case flow over airfoil

  • Thread starter maomao39
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12
0
In which range of Reynolds numeber is laminar flow for airfoil?
Is it Re < 5 x 10^5?
How about turbulence case?
 

boneh3ad

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There is no general transition point Retnolds number. It depends on the shape of te airfoil and the surface roughness of the airfoil and the freestream flow quality and a host of other things besides Reynolds number. Typically though, even in a noisy wind tunnel the transition Retnolds number will be well into the millions. Still, that is very much an overgeneralization.
 
12
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The reynolds number for internal flow are much more easier.
My airfoil is NACA 0012 symmetrical airofoil.
Currently running on CFD simulation
 

boneh3ad

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Yes but internal flow is fundamentally different. Even on a simple flat plate there is no way to determine the transition Reynolds number in general.
 

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