The aim of this paper is to report and analyze experimental results on forces generated by a high-camber thin section with a sharp leading edge, namely, a curved plate with 22.3% relative camber, and measurements of the flowfield, in a nominally 2D flow. A wide range of angles of attack [ 10 ° ; 32°] is investigated for 3 values of the Reynolds number across the transitional range. Unusual polar curves are observed with sharp variations of lift with the angle of attack. At low incidence, the lift coefficient increases faster than 2 π / radian . Moreover, very different behaviors occur for Reynolds numbers lower or higher than 10 5 . For small or negative angles of attack, the lift coefficient is negative (downward lift) at small Reynolds numbers, but positive (upward lift) at higher Reynolds numbers. The velocity field is investigated with particle image velocimetry. Variations of lift are related to changes in the topology of the flowfield around the section. These results help to better understand the flow around a high-camber thin section and provide a detailed benchmark database in a simple geometry for model validations. As strong Reynolds number effects are evidenced, this database would be particularly useful to assess the performance of transition models.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Force Variations Related to Flow Pattern Changes Around a High-Camber Thin Wing


    Beteiligte:
    Bot, P. (Autor:in)

    Erschienen in:

    AIAA Journal ; 58 , 5 ; 1906-1912


    Erscheinungsdatum :

    2019-12-27


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch







    VARIABLE WING LEADING EDGE CAMBER

    PIPERNI PASQUALE | Europäisches Patentamt | 2023

    Freier Zugriff

    VARIABLE WING LEADING EDGE CAMBER

    PIPERNI PASQUALE | Europäisches Patentamt | 2021

    Freier Zugriff