A low speed wind-tunnel investigation is presented documenting the impact of taper ratio at low Reynolds number. An AR = 5.56 wing using a S8036 section was tested at R e = 100,000 and 150,000. Taper ratio was varied from 1 down to 0.2 in 0.2 increments. An analytic prediction method as well as extended numerical lifting line theory incorporating nonlinear section data was implemented to compare with experiment. The experimental results indicated a weak dependence of peak lift to drag ratio on taper ratio for both Reynolds numbers. Surface flow visualization showed the presence of a large laminar transitional bubble on the upper wing surface. The relative extent of the bubble was observed to increase towards the tip region for tapered planforms. Agreement between theory and experiment in terms of lift and drag estimation was good. Planform optimization using the extended numerical lifting line theory indicated that at the test conditions and using the selected airfoil section, a planform that differs from straight taper or elliptic may be most efficient.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Effect of Taper Ratio at Low Reynolds Number


    Beteiligte:
    Traub, Lance W. (Autor:in) / Botero, Emilio (Autor:in) / Waghela, Rajmohan (Autor:in) / Callahan, Ryan (Autor:in) / Watson, Aaron (Autor:in)

    Erschienen in:

    Journal of Aircraft ; 52 , 3 ; 734-747


    Erscheinungsdatum :

    2015-03-24


    Format / Umfang :

    14 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Effect of Taper Ratio at Low Reynolds Number

    Traub, Lance W | Online Contents | 2015


    Experimental Investigation on the Effect of Sweep and Taper on Low Reynolds Number Finite Wings

    Hayostek, Shelby / Ottinger, John / Jacob, Neal et al. | TIBKAT | 2022


    Experimental Investigation on the Effect of Sweep and Taper on Low Reynolds Number Finite Wings

    Hayostek, Shelby / Ottinger, John / Jacob, Neal et al. | AIAA | 2022



    Effect of aspect ratio on wing rock at low Reynolds number

    Go, Tiauw Hiong / Maqsood, Adnan | Elsevier | 2015