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The aerodynamic characteristics of an aspect-ratio-20 wing having thick airfoil sections and employing boundary-layer control by suction / by Bennie W. Cocke, Jr., Marvin P. Fink, and Stanley M. Gottlieb.
- Format:
- Book
- Government document
- Author/Creator:
- Cocke, Bennie W., author.
- Fink, Marvin P., author.
- Gottlieb, Stanley M., author.
- Series:
- Technical note (United States. National Advisory Committee for Aeronautics) ; 2980.
- Technical notes / National Advisory Committee for Aeronautics ; No. 2980
- Language:
- English
- Subjects (All):
- Airplanes--Models--Wings.
- Airplanes.
- Aerofoils.
- Boundary layer control.
- Lift (Aerodynamics).
- Wind tunnel testing.
- Physical Description:
- 1 online resource (63 pages) : illustrations
- Place of Publication:
- Washington [D.C.] : National Advisory Committee for Aeronautics, 1953.
- Summary:
- An investigation has been conducted to study the aerodynamic characteristics of an aspect-ration-20 wing having thick airfoil sections and employing boundary-layer control by suction. Data from model tests in both the Langley full-scale tunnel and the Langley low-turbulence pressure tunnels are included. The results indicate the effects of varying suction flow rate, suctioin-slot configurations, wing surface condition, flap deflection, and Mach number.
- The results indicate that, through the use of boundary-layer control by suction, trailing-edge separation was controlled and lift-drag ratios as high as 20.8 were attained in the lift-coefficient range from 0.9 to 1.0 for the smooth-wing configuration. Up to a Mach number of 0.44, test results show compressibility effects to be only minor for the lift-coefficient range up to and including 1.0. With full-span trailing-edge flaps installed and maximum suction flow rates applied, maximum lift coefficients of 2.5 and 4.2 were obtained for flaps-neutral and flaps-deflected conditions, respectively.
- Notes:
- Title from title screen (viewed March 7, 2019).
- "August 1953."
- "Langley Aeronautical Laboratory, Langley Field, Va."
- No Federal Depository Library Program (FDLP) item number.
- Includes bibliographical references (page 14).
- Print version record.
- Other Format:
- Paper version: Cocke, Bennie W. Aerodynamic characteristics of an aspect-ratio-20 wing having thick airfoil sections and employing boundary-layer control by suction
- OCLC:
- 1100474474
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