The circulation control method for improving the hydrodynamic characteristics of a low aspect ratio rudder is investigated in circulating water-channel tests. Circulation control is achieved from a thin jet of water that exits through a 0.45mm spanwise slot along the upper surface of the airfoil near the trailing edge. Experimental investigations have demonstrated that the lift increases as the jet blowing increases, and the lift augmentation is obtained even at zero deg angle of attack with relatively small amounts of blowing water. Endplates installed at both ends of rudder's span are shown to increase the lift at fixed angle of attack and decrease the drag. The longitudinal V grooves engraved at Coanda surface are also shown to decreases the drag and improve the lift-to-drag ratio.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Experiment Investigation of a High-Lift Rudder Circulaion Control Rudder


    Erschienen in:

    Erscheinungsdatum :

    01.01.1996


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    RUDDER PLATE PROVIDED WITH RUDDER HUB AND RUDDER HUB FOR RUDDER PLATE

    LEHMANN DIRK / HERBERT BLUEMEL | Europäisches Patentamt | 2018

    Freier Zugriff

    Rudder angle control method, rudder angle control device and rudder angle control box

    WANG ZHENGZHI / SHEN JUNJIE / DU HAIMING et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    VESSEL RUDDER HAVING ASSISTANCE-RUDDER

    PARK SUNG KYU | Europäisches Patentamt | 2016

    Freier Zugriff