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Boundary layer thickness on the sides of a civil aircraft

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Old   September 26, 2012, 06:48
Default Boundary layer thickness on the sides of a civil aircraft
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Hi,

Can anyone tell me what is the average boundary layer thickness on the side of a civil aircraft, flying at an average speed?

Thanks,
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Old   September 26, 2012, 07:10
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Well your question might not result an answer.
Do you mean the fuselage by the word "side"?

Let's say the flow is laminar and you know the Reynolds number.
Then you can estimate the boundary layer thickness from Blasius' solution.
But you should think twice about how to use this estimated thickness.

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Old   September 26, 2012, 07:19
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I apologise, the question wasn't clear.
I mean the side of the aircraft between the nose and the wing. If there is a way to calculate the boundary layer thickness.

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Old   September 26, 2012, 07:48
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Still, you can apply what I wrote.
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Old   September 26, 2012, 08:15
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Thank you.
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Old   September 26, 2012, 08:16
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Hello:
try to serching for boundary layer thickness calculation on the NTRSīs page. There you can find many reports dealing with that issue. Regards.
Gonzalo
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