Investigation and improvement of directional stability and control of a propeller-driven STOL aircraft

The scope of this paper is to investigate and improve the aerodynamic properties of a propeller driven state-of-the-art active high-lift configuration in lateral motion. 3D RANS simulations of the landing configuration with circulation control and slipstream deflection under crosswind, and one engin...

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Bibliographic Details
Published inCEAS aeronautical journal Vol. 10; no. 3; pp. 909 - 924
Main Authors Keller, Dennis, Rudnik, Ralf
Format Journal Article
LanguageEnglish
Published Vienna Springer Vienna 01.09.2019
Springer Nature B.V
Subjects
Aerodynamics
Aerospace Technology and Astronautics
Airframes
Configuration management
Configurations
Control stability
Crosswinds
Directional stability
Engineering
Fuselages
High lift
Original Paper
Short takeoff aircraft
Sideslip
Slipstreams
Three dimensional motion
Yaw
Yawing moments
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Summary:The scope of this paper is to investigate and improve the aerodynamic properties of a propeller driven state-of-the-art active high-lift configuration in lateral motion. 3D RANS simulations of the landing configuration with circulation control and slipstream deflection under crosswind, and one engine inoperative (OEI) conditions were performed. The configuration shows directionally unstable behavior at small sideslip angles and high yawing moment production under OEI conditions. Flowfield analyses indicate that both can be attributed to wake-tail interference effects caused by slipstream–vortex interaction. The integration of tail fences at the rear of the fuselage leads to considerable improvements for both conditions.
ISSN:1869-5582
1869-5590
DOI:10.1007/s13272-019-00363-8