A practical method for the prediction of cavitation on a propeller operating in a ship wake and hull surface pressure induced by a cavitating propeller is presented. In this method, the following items are applied: propeller part: the combination of Hanaoka-Koyama's unsteady lifting surface theory and corresponding 2-D wing theory. Cavitation part: linearized 2-D cavity theory applying the angle of attack and the local cavitation number derived from the propeller part. Hull surface pressure part: the application of the method of periodic source in place of cavity volume variation while a propeller blade is turning behind hull, moreover blade loading and blade thickness are included. In order to stand the practical use, correction factors on the cavitation part are adopted from 2-D cavitation test and actual ship observations. The predicted results on blade cavitation and hull surface pressure are compared with measured one, and the advantages of the method are discussed. (Wassmann)


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    Title :

    Practical calculations for prediction of propeller cavitation and propeller induced hull surface pressure


    Additional title:

    Praktische Berechnungen zur Ermittlung der Propellerkavitation und des vom Propeller erzeugten Oberflaechendrucks auf dem Rumpf
    Titel japanisch


    Contributors:
    Yuasa, H. (author) / Ishii, N. (author)


    Publication date :

    1980


    Size :

    9 Seiten, 15 Bilder, 2 Tabellen, 12 Quellen


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Japanese




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