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Communication dans un congrès

Slipstream Deformation of a Propeller-Wing Combination Applied for Convertible UAVs in Hover Condition

Abstract : Convertible unmanned aerial vehicle (UAV) promises a good balance between convenient autonomous launch/recovery and efficient long range cruise performance. Successful design of this new type of aircraft relies heavily on good understanding of powered lift generated through propeller-wing interactions, where the velocity distribution within propeller slipstream is critical to estimate aerodynamic forces during hover condition. Current study analysed a propeller-wing combination with a plain flap. A 5-hole probe measurement system was built to construct 3 dimensional velocity field at a survey plane after trailing edge. The study has found that significant deformation of propeller slipstream was present in the form of opposite transverse displacement on extrados and intrados. The deformation could be enhanced by flap deflections. Velocity differences caused by the slipstream deformation could imply local variation of lift distribution compared to predictions from conventional assumptions of cylindrical slipstream. The research underlined that the mutual aspect of propeller-wing interaction could be critical for low-speed aerodynamic design.
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Communication dans un congrès
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Soumis le : mardi 19 octobre 2021 - 16:05:00
Dernière modification le : samedi 12 mars 2022 - 03:32:18
Archivage à long terme le : : jeudi 20 janvier 2022 - 19:31:29


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  • HAL Id : hal-03385827, version 1
  • OATAO : 28447



Yuchen Leng, Murat Bronz, Thierry Jardin, Jean-Marc Moschetta. Slipstream Deformation of a Propeller-Wing Combination Applied for Convertible UAVs in Hover Condition. 2019 International Micro Air Vehicle Competition and Conference, Sep 2019, Madrid, Spain. pp.0. ⟨hal-03385827⟩



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