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Mise en relation analytique de la cinématique de l’écoulement et des performances d’un rotor caréné à Mach de vol intermédiaire

Lagha, Massyl and Duplaa, Sébastien and Binder, Nicolas and Carbonneau, Xavier Mise en relation analytique de la cinématique de l’écoulement et des performances d’un rotor caréné à Mach de vol intermédiaire. (2017) In: 23ème Congrès Français de Mécanique, 28 August 2017 - 1 September 2017 (Lille, France).

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Abstract

Reaching the European long-term air transport emission reduction goals impose shifting by 2050 toward hybridation/electrification of airplanes as well as global optimization of flight missions. This implies developping distributed propulsion systems through the multiplication of small shrouded rotors operating at high efficiency within a wide range. Present litterature lacks a low-order shrouded rotor model specifically designed to work on such wide operating range. In this paper, the working range of the existing models is benchmarked on the basis of similarity factors built on an innovative expression of the shrouded rotors problem. It is established here that the model of Jardin et al. [1] presents the wider working range thanks to the "homokinetic" surface definition but lacks robustness and needs an additional input that is related to the "homokinetic" surface. The extension of this model to the compressible domain increases its robustness and an empirical model of the "homokinetic" surface helps droping the additional input.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):National conference proceedings
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Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
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Deposited By: Nicolas Binder
Deposited On:12 Dec 2017 08:27

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