Improved design of a high lift system for general aviation aircraft

Improved design of a high lift system for general aviation aircraft

Florjancic, D. (TU Delft Beheer & Vermarkten IP)
Steenhuizen, D. (TU Delft Flight Performance and Propulsion)
Veldhuis, L.L.M. (TU Delft Flight Performance and Propulsion)

2016

Optimization of a single slotted flap with dropped hinge is performed with the objective of increasing the payload of a propeller driven 4-seater general aviation aircraft. Within the optimization loop, two-dimensional aerodynamic characteristics are evaluated using the MSES code, while three-dimensional aerodynamic characteristics and weight are estimated with semi-empirical methods. Genetic and pattern search algorithms are used to minimize the objective function. It is found that the payload can be increased by up to 40% if the stall speed is kept constant. Cruise drag due to flap support fairings increases the fuel burn for 3% on a range of 1000 nm. A method of using the maximum displacement thickness on the flap trailing edge in order to detect separation during optimization is proposed and found to be reliable.

Aerodynamic design
High lift devices
Optimization

http://resolver.tudelft.nl/uuid:e6ff7da1-5724-4a3c-9792-5ca469c1176e

International Council of the Aeronautical Sciences

9783932182853

30th Congress of the International Council of the Aeronautical Sciences, ICAS 2016

30th Congress of International Council of the Aeronautical Sciences, 2016-09-25 → 2016-09-30, Daejeon, Korea, Republic of

Institutional Repository

conference paper

© 2016 D. Florjancic, D. Steenhuizen, L.L.M. Veldhuis