PROBLEM TO BE SOLVED: To further reduce resistance that is added with turbulence frictional resistance and pressure resistance.SOLUTION: An object 1 such as an aircraft, a plant and a pipe line has a wavy riblet pattern 3 at the surface thereof 2. The wavy riblet pattern 3 is constituted of a number of wavy riblets 30 having a wavy ridge line 31 and height (h) that periodically changes relative to a fluid flow direction D.SELECTED DRAWING: Figure 1

    【課題】乱流摩擦抵抗と圧力抵抗とを加算した抵抗をより低減すること。【解決手段】航空機やプラント、パイプラインなどの物体1は、表面2に波状リブレットパターン3を有する。波状リブレットパターン3は、稜線31が波状で、高さhが流体の流れ方向Dに対して周期的に変化する多数の波状リブレット30から構成される。【選択図】図1


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    Title :

    RIBLET STRUCTURE AND OBJECT


    Additional title:

    リブレット構造及び物体


    Contributors:

    Publication date :

    2017-09-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F15D FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS , Strömungsdynamik, d.h. Verfahren oder Vorrichtungen zum Beeinflussen der Strömung von Gasen oder Flüssigkeiten / B64C AEROPLANES , Flugzeuge



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