PROBLEM TO BE SOLVED: To provide a wing tip structure that increases lift by suppressing various lift decrease caused by the vortex generated at the end of the leading and trailing edge wing tips flowing from the lower surface under positive pressure to the top surface under negative pressure in the wing tip at the flight of a flying object.SOLUTION: A wing tip structure decreases a height of a wing tip part in conformity to lift decrease by the decrease of the leading-edge vortex in the falling, and reduces a weight burden. The structure is formed such that a wing-tip shape is formed in which the central ray rear becomes the upward inclination for traction to the lower rear due to viscous resistance of the wing tip vortex generated during flight, to bring the direction of inductive resistance close to teh horizontal direction. By forming the central ray rear into the upward inclination against the risk of tip stall due to the trailing vortex at the high angle of attack, sneak of the trailing vortex is suppressed to thereby retard the tip stall.SELECTED DRAWING: Figure 10

    【課題】飛しょう体の飛行時での翼端部に於いて、正圧である下面から負圧である上面へ流れる前縁後縁翼端等の端部で生じる渦により引き起こされる、種々の揚力低下を抑制し揚力を増大する翼端構造を提供する。【解決手段】落下時の前縁渦の減少による揚力低下に合わせて翼端部の高さを減少し重量負担を軽減する。飛行時で生じる翼端渦の粘性抵抗による後下方への牽引には、中心線後部が上向きの傾斜となる翼端形状とし、誘導抵抗の方向を水平に近づける構造とする。大迎角時に於ける後縁渦による翼端失速のリスクには、中心線後部を上向きの傾斜とする事により、後縁渦の回り込みを抑制し、翼端失速を遅延させる。【選択図】図10


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    Title :

    WING TIP STRUCTURE FOR SUPPRESSING LIFT LOSS DUE TO VORTEX DRAG GENERATED AT SIDE OF WING


    Additional title:

    翼の側部で生じる渦抗力による揚力損失を抑制する翼端構造


    Contributors:

    Publication date :

    2017-05-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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