The purpose of this study is to analyze influence of airfoil profile on lateral-directional flying quality of flying wing aircraft. The lateral-directional stability is always insufficient for aircraft with the layout due to the absence of vertical stabilizer. A flying wing aircraft with double-swept wing is used as research object in the paper.

    Design/methodology/approach

    The 3D model is established for the aircraft with flying wing layout, and parametric modeling is carried out for airfoil mean camber line of the aircraft to analyze lateral-directional stability of the aircraft with different camber line parameters. To increase computational efficiency, vortex lattice method is adopted to calculate aerodynamic coefficients and aerodynamic derivatives of the aircraft.

    Findings

    It is found from the research results that roll mode and spiral mode have a little effect on lateral-directional stability of the aircraft but Dutch roll mode is the critical factor affecting flying quality level of such aircraft. Even though changes of airfoil mean line parameters can greatly change assessment parameters of aircraft lateral-directional flying quality, that is kind of change cannot have a fundamental impact on level of flying quality of the aircraft. In case flat shape parameters are determined, the airfoil profile has a limited impact on Dutch roll mode.

    Originality/value

    Influences of airfoil profile on lateral-directional flying quality of aircraft with double-swept flying wing layout are revealed in the thesis and some important rules and characteristics are also summarized to lay a theoretical basis for design of airfoil and flight control system of aircraft with the layout.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Influences of airfoil profile on lateral-directional stability of aircraft with flying wing layout


    Contributors:
    Pan, Yalin (author) / Huang, Jun (author)

    Published in:

    Publication date :

    2019-02-12


    Size :

    1 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Statically unstable flying wing layout aircraft stability augmentation control method

    LI CHUNTAO / LI XUEBING / ZHANG PENG et al. | European Patent Office | 2020

    Free access

    Extremely-simple supersonic flying wing layout aircraft

    HUANG JIANGTAO / CHEN XIAN / CHEN QISHENG et al. | European Patent Office | 2021

    Free access



    Dual-purpose flying wing device, flying wing aircraft and flying wing method of flying wing aircraft

    WANG WUSHENG / ZHANG GUANGJUN / LIU SHIQUN et al. | European Patent Office | 2020

    Free access