B.G. van der Wall

Comprehensive codes are the working horse for simulation purposes of a helicopter and its rotor under steady and unsteady conditions and they are also used to predict the operational limits until rotor stall. These limits are always dictated by aerodynamics - mainly flow separation due to airfoil stall - if not reached by other limits before. Accurate prediction of airfoil stall on rotating blades is a major challenge for comprehensive codes, despite many efforts spent on unsteady airfoil models. This paper focuses on hovering and high-speed rotor stall limits and on the factors that affect the rotor limits prediction.

49th European Rotorcraft Forum 2023, Bückeburg, 2023

Conference Paper

englisch

21,0 x 29,7 cm, 25 Seiten

DGLR-Bericht, 2023, 2023-01, 49th European Rotorcraft Forum 2023 - Proceedings; S.1-25; 2023; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

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Bestellbar

2023