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Conceptual Design for Long-Endurance Convertible Unmanned Aerial System

Fayez, Karim and Leng, Yuchen and Jardin, Thierry and Bronz, Murat and Moschetta, Jean-Marc Conceptual Design for Long-Endurance Convertible Unmanned Aerial System. (2021) In: AIAA Scitech 2021 Forum, 11 January 2021 - 21 January 2021 (Virtual event, United States).

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Official URL: https://doi.org/10.2514/6.2021-1059

Abstract

This research is aimed at analysing the effect of design parameters on critical aerodynamic performance of convertible unmanned aerial vehicle (UAV) with vertical take-off and landing (VTOL) capabilities and providing a sizing tool for its conceptual design. The research was based on new aerodynamic models specifically developed and validated for convertible aircraft, performed using mission-based optimisation techniques. To accommodate a wide range of convertible aircraft configurations, a non-linear lifting-line method was used to efficiently analyse different combinations of lifting surface and propeller arrangements. Propeller loads were calculated using a blade element momentum approach and corrected for high incidence angle conditions according to numerical and experimental studies. Propeller-wing interactions were considered by modifying local boundary conditions at wing sections immersed in propeller slipstream. Previous studies have suggested that the design of convertible aircraft is sensitive to typical mission requirements, notably the endurance breakdown between near-hover flight and cruise flight. A clear sizing law for wing and propeller according to given mission specification could greatly improve the understanding of compromises between hover and high speed flight.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Ecole Nationale de l'Aviation Civile - ENAC (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
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Association Nationale Recherche Technologie - Delair
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Deposited On:19 Oct 2021 14:20

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