"Sphere of influence" of a wing?

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yankeeclipper

Well-Known Member
Joined
Jun 1, 2009
Messages
47
Location
Northeast.
For lack of a better term, I'm trying to find out how one calculates the downwash angle, and the vertical range of the downwash. I know the latter is technically infinite, at least in-so-far-as a butterfly wing changes the course of world history. But if I were interested in knowing what the resultant airflow was (speed, turbulence, direction) within, say, a 10 foot range, what tools or formulae are available for this?

In case you were hazarding a guess--yes, I'm after tandem wing considerations here.
 

orion

Well-Known Member
Joined
Mar 2, 2003
Messages
5,800
Location
Western Washington
Virtually all basic aero texts have downwash calculations - recently someone mentioned Theory of Wing Sections having a few pages related to downwash. Most other design references also have pertinent chapters, including those that discuss tandem wing arrangements.
 
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