A SIMPLIFIED METHOD OF AIRFOIL DESIGN

Authors

  • Francisco Galvao

Keywords:

Aerodynamics, Structures, Design

Abstract

It is proposed that nost already-designed synnetrical airfoil shapes, when taken in non-dinensional ordinates, related to their maximum thickness ordinates, can be represented by very sinple trigononetric functions. Using inversely these functions with chosen distinct values for upper and lower surfaces and the uniform load NACA a=1 mean 1ine, it is shown that airfoils for rather different flying conditions can be easily generated. Some criteria for this choice and examples of airfoils with Stratford-type turbulent recoveries are also presented.

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