The application of circulation control (CC) manoeuvre effectors to a tailless flight vehicle enables the possibility of providing control moments about three axes without the use of conventional control surfaces. Strong similarities exist between the use of split flap elevons and CC units used as trailing edge devices for the provision of three-axis control. Both control types can produce independent roll and pitching moments by lateral symmetric operation. Yawing moments can also be produced by simultaneous blowing from upper and lower CC slots increasing the local section axial force. An existing datasheet method for predicting the lift and pitching moment increments for plain flaps is modified to support some aspects of sizing CC devices; however, there are some significant gaps such as high fidelity models for the prediction of Coanda jet separation from the curved trailing edge, which require further research. A case study is presented in which the provision of three-axis control moments using CC is evaluated for a tailless 20 kg class gas-turbine-powered model aircraft. Wind tunnel experiments are used to demonstrate the validity of the aerodynamic design of the vehicle and the ability to produce control moments from CC sufficient to meet basic trim and manoeuvre requirements.


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    Title :

    Application of circulation control for three-axis control of a tailless flight vehicle


    Additional title:

    Anwendung der Zirkulationskontrolle für die Dreiachsensteuerung eines Delta-Flugkörpers


    Contributors:


    Publication date :

    2010


    Size :

    14 Seiten, 11 Bilder, 2 Tabellen, 18 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Application of circulation control for three-axis control of a tailless flight vehicle

    Wilde, P I A / Crowther, W J / Harley, C D | SAGE Publications | 2010



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    Harley, C. / Wilde, P. / Crowther, W. et al. | British Library Conference Proceedings | 2009



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