This paper extends Froude’s momentum theory for free propellers to the analysis of shrouded rotors. A one-dimensional analytical approach is provided, and a homokinetic normal inlet surface model is proposed. Formulations of thrusts and power for each system component are derived, leading to the definition of optimum design criteria and providing insight into the global aerodynamics of shrouded rotors. In the context of micro-air vehicles applications, assessment of the model is conducted with respect to numerical data. Overall, comparison between numerical and analytical results shows good agreement and highlights the sensitivity of the model to viscous effects.


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    Titel :

    Revisiting Froude’s Theory for Hovering Shrouded Rotor


    Beteiligte:
    Jardin, T. (Autor:in) / Grondin, G. (Autor:in) / Gressier, J. (Autor:in) / Huo, C. (Autor:in) / Doué, N. (Autor:in) / Barènes, R. (Autor:in)

    Erschienen in:

    AIAA Journal ; 53 , 7 ; 1836-1844


    Erscheinungsdatum :

    2015-03-06


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Froude's quasi-dimensionless coefficient

    Labberton, J.M. | Engineering Index Backfile | 1939



    SHROUDED FAN ROTOR

    CHRABASCZ ERIC / PRASAD DILIP / LOKHANDWALLA MURTUZA et al. | Europäisches Patentamt | 2016

    Freier Zugriff

    Froude's law for the airship

    Greenhill, George | Engineering Index Backfile | 1916