24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-4.1.1

LOW-SPEED HIGH-LIFT PERFORMANCE IMPROVEMENTS OBTAINED AND VALIDATED BY THE EC-PROJECT EPISTLE

U. Herrmann
DLR, Institute of Aerodynamics and Flow Technology, D-38108 Braunschweig, Germany

Keywords: low-speed aircraft performance, high-lift system design, noise reduction

A new method for low-drag high-lift system design based on viscous flow solvers was developed for Supersonic Commercial Transport wings within the EC research project EPISTLE. Two high-lift systems were manufactured for a large-scale wind tunnel model. The numerically predicted drag reductions (20% compared to a datum system) were fully confirmed by high Reynolds number tests.

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