A method for producing an object with riblets on and/or in the surface, around which object a fluid flows during use. A frictional resistance acting on a surface region along a flow direction during a flow around the object in the fluid is calculated and added up to a cumulative frictional resistance over a length of the surface region in the flow direction, after which the riblets are provided on and/or in a partial region of the surface in which an increase in the cumulative frictional resistance is at least 0.9, in particular greater than 1.0 to 0.9. Moreover, a method is provided for modifying a surface of an object around which a fluid flows during use, such as a foil. A structure having riblets is created on and/or in the surface, which structure reduces flow resistance of the object. Furthermore, a fluid flows around an object during use.


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    Title :

    VERFAHREN ZUR HERSTELLUNG EINES MIT RIBLETS AUF UND/ODER IN DER OBERFLÄCHE VERSEHENEN OBJEKTES SOWIE DAMIT HERGESTELLTES OBJEKT


    Additional title:

    METHOD FOR PRODUCING AN OBJECT PROVIDED WITH RIBLETS ON AND/OR IN THE SURFACE, AND OBJECT PRODUCED THEREBY
    PROCÉDÉ DE PRODUCTION D'UN OBJET POURVU DE FILMS À RIBLET SUR ET/OU DANS LA SURFACE, ET OBJET AINSI PRODUIT


    Contributors:
    LEITL PETER (author)

    Publication date :

    2022-11-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / 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