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Analytic geometry

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mcrae0104

Well-Known Member
Supporting Member
Joined
Oct 27, 2009
Messages
5,115
Location
KEIK (CO)
How about a companion to the descriptive geometry thread…

How are you making use of analytic geometry in your project? Please tell us about it here and let’s all learn from each other!

@oriol's wing analysis thread got me thinking. Wing planform geometry drives integration for lift and drag distribution, shear, moment and deflection. If the LE & TE are described as functions, changes could be made very easily without extensive spreadsheet work to do the analysis.

Here is a widget I made to play with some of the variables around my particular planform—but you could generate a whole family of shapes with it, from Hershey bar to crescent to elliptical to circular. Click the link and try it out. All you have do do is move some sliders around to see how the variables influence wing shape. The variables are:
  • A = aspect ratio
  • S = wing area
  • Czs = % chord with zero sweep
  • Ybr = % of semispan where trailing edge transitions from elliptical to straight edge

IMG_0538.jpeg IMG_0539.jpeg


IMG_0540.jpeg IMG_0543.jpeg
 
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