In the context of conceptual design there are low-fidelity lifting line models capable of predicting the maximum lift coefficient of trapezoidal twisted wings. However, more complex geometries like that of the blended-wing–body (BWB) require the introduction of additional geometrical hypotheses. This paper introduces a compound-wing lifting line model that predicts the maximum lift coefficient of geometries like the BWB. Such a model would decrease computation times at early design stages for the BWB. The proposed model is calibrated using Reynolds-Averaged Navier–Stokes (RANS) simulations of a regional BWB geometry near stall with three different twist distributions at low-speed conditions. Application of the calibrated compound wing model on the regional BWB geometry allows to quickly find an optimal twist distribution for this specific configuration: a semiconstant twist distribution on a fraction of the outer wing.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Predicting Maximum Lift Coefficient for Compound Wings Using Lifting Line Theory



    Published in:

    Journal of Aircraft ; 58 , 4 ; 717-732


    Publication date :

    2021-06-03


    Size :

    16 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English







    Predicting Maximum Lift Coefficient for Twisted Wings Using Lifting-Line Theory AIAA Paper

    Phillips, W. / Alley, N. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2007