Development and Validation of Airfoils for Global Range Transports

The developmental process for an airfoil designed to be used on long-range transonic transport aircraft with large regions of natural laminar flow is described. Components of the development process that are discussed include mission-driven needs criteria, airfoil design method, experimental airfoil...

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Bibliographic Details
Main Authors: Tilmann, Carl P, Brandt, Lee B, Russell, Justin W, Ramsay, Robyn R, Hoehn, Thomas
Format: Report
Language:English
Subjects:
AERODYNAMIC LIFT
AIRFOILS
BOUNDARY LAYER FLOW
COMPUTATIONS
DRAG REDUCTION
EXPERIMENTAL DATA
FLOW FIELDS
GLOBAL RANGE AIRCRAFT
JET TRANSPORT AIRCRAFT
LAMINAR FLOW
MATHEMATICAL PREDICTION
MOMENTS
OPTIMIZATION
PE61102F
TRANSONIC AIRCRAFT
Transport Aircraft
VALIDATION
WUAFRL2304N401
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Summary:The developmental process for an airfoil designed to be used on long-range transonic transport aircraft with large regions of natural laminar flow is described. Components of the development process that are discussed include mission-driven needs criteria, airfoil design method, experimental airfoil validation, and a variety of numerical validation procedures. Numerical analyses include flowfield prediction, boundary layer stability analysis and transition prediction, and force and moment assessment. Assessments are made at several off-design conditions. The overall goal is to develop and demonstrate the computational tools and analytical methods required for the optimal design of unconventional airfoils and wings for global range cruise flight. Prepared in cooperation with Lockheed Martin Aeronautics Co. Marietta, GA; Ohio State University, Aeronautical and Astronautical Research Laboratory, Columbus, OH; Federal Office of Military Technology and Procurement (BWB), Aircraft and Aeronautical Equipment Division, Koblenz, Germany.