Accession Number : AD0736948

Title :   A Simple Model for the Theoretical Study of Slat-Airfoil Combinations,

Corporate Author : DOUGLAS AIRCRAFT CO LONG BEACH CALIF

Personal Author(s) : Liebeck,Robert H. ; Smyth,D. N.

Report Date : 1972

Pagination or Media Count : 8

Abstract : The aerodynamics of slat-airfoil combinations was studied using a single point vortex to represent the leading-edge slat. The main airfoil is chosen from an infinite set of airfoils whose mapping functions to the unit circle are analytically defined. (The classical Joukowski airfoils are members of this set). This model allows the entire flow field about the slat vortex plus main airfoil system to be described analytically and therefore an 'on-line' computer graphics program was prepared for its solution and evaluation. The vortex strength and position with respect to the main airfoil is prescribed and the program calculates and displays the velocity distribution on the airfoil with and without the vortex present. This program was applied to the study and development of some basic slat design guidelines. (Author)

Descriptors :   (*AIRFOILS, AERODYNAMIC CHARACTERISTICS), (*LEADING EDGE FLAPS, AERODYNAMIC CHARACTERISTICS), VORTICES, VELOCITY, MATHEMATICAL MODELS, FLOW FIELDS

Subject Categories : Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE