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Investigation of NACA 64,2-432 and 64,3-440 Airfoil Sections with Boundary-layer Control and an Analytical Study of Their Possible Applications

Elmer A Horton, Stanley F Racisz, Nicholas J Paradiso

Abstract

Report presenting testing of NACA 64-series airfoil sections to determine the effect of boundary-layer control by means of suction through an airfoil chord on the pressure distribution, lift, and drag characteristics of two different types of airfoil sections. Substantial reductions in wake drag were obtained through a wide range of lift coefficients with relatively moderate flow coefficients and pressure-loss coefficients. Results regarding airfoil-section data and effect of boundary-layer control on lift-drag ratio are provided.

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Available abstract

Key concepts: Airfoil, NACA airfoil, Boundary layer, Drag, Mechanics, Lift-to-drag ratio, Lift (data mining), Chord (peer-to-peer)