Leading-edge slat optimization for maximum airfoil lift
Lawrence E. Olson, Phillip R. McGowan, Clayton J. Guest, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch, Ames Research Center
National Aeronautics and Space Administration, Scientific and Technical Information Office, 1979 - Aerofoils - 23 pages
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80-Foot Wind Tunnel adverse pressure gradient aerodynamic analysis aerodynamic calculation Ames 40 Ames Research Center angle of attack boundary-layer analysis boundary-layer coordinate system boundary-layer displacement boundary-layer equations boundary-layer solutions Computer Sciences Corporation confluent boundary layer constrained function minimization constraint coupling potential flow deg Figure design procedure determining the position displacement effect eddy viscosity Effect of slat experimentally optimized slat finite-difference flow and boundary-layer flow field high-lift highest angle incipient flow separation iteratively coupling potential laminar instability LEADING-EDGE SLAT OPTIMIZATION lift coefficient main airfoil main element maximizes the lift MAXIMUM AIRFOIL LIFT measured maximum lift minimizes the suction Moffett Field multielement airfoils NASA numerical procedure OPTIMIZATION FOR MAXIMUM optimized slat position position for maximum position that minimizes prediction of incipient pressure distributions Reynolds number Reynolds stress single-slotted flap slat deflection slat location slat wake suction peak theoretical predictions theoretical results theoretically optimized turbulent reattachment wind-tunnel testing wing maximum lift xs/c ys/c