Advanced Design by Numerical Methods and Wind-Tunnel Verification Within European High-Lift Program

The design activity within the European sixth framework European High-Lift Program II is targeted toward an improvement of the takeoff performance of a generic transport aircraft configuration by a redesign of the trailing-edge flap. The involved partners applied different optimization strategies, as well as different types of flow solvers, to cover a wide range of possible approaches for aerodynamic design optimization. The optimization results obtained by the different partners have been cross calculated to eliminate solver dependencies and to identify the best obtained design. The final selected design has been applied to the wind-tunnel model, and the test in the European Transonic Wind Tunnel at high Reynolds number confirms the predicted improvements. [PUBLICATION ABSTRACT]