Ships which operate in Arctic and sub-Arctic conditions are often subjected to momentary increased propeller cavitation because ice pieces block the flow into the propeller. Model tests have shown that such ice blockages lead to regions of violent cloud cavitation. There is a possibility that severe erosion occurs on full scale propellers while operating in these conditions. Erosion tests, using paint films, were carried out in the cavitation tunnel at the Institute for Marine Dynamics (IMD) with a 200 mm diameter model propeller of the type which is fitted to the Canadian R-Class ice-breakers. A simulated ice blockage was installed in the tunnel ahead of the propeller and tests were conducted over a range of cavitation numbers and advance coefficients. The types of cavitation which occured as a result of the blockage were documented. The areas of erosion were estimated and the erosion patterns were photographed for each test condition.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Cavitation erosion on a model ice class propeller in blocked flow


    Weitere Titelangaben:

    Die Kavitationserosion eines eisgangtauglichen Modellpropellers dessen Schraubenströmung durch Eisstücke gestört ist


    Beteiligte:
    Doucet, J.M. (Autor:in) / Bose, N. (Autor:in) / Walker, D. (Autor:in) / Jones, S.J. (Autor:in)


    Erscheinungsdatum :

    1995


    Format / Umfang :

    10 Seiten, 7 Bilder, 3 Tabellen, 6 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Cavitation Erosion on a Model Ice Class Propeller in Blocked Flow

    Doucet, J. M. / Bose, N. / Walker, D. et al. | British Library Conference Proceedings | 1995


    Cavitation and propeller erosion

    Slocum, S.E. | Engineering Index Backfile | 1925


    Studies of propeller cavitation erosion

    Lindgren, H. / Bjaerne, E. | Tema Archiv | 1974


    Cavitation erosion of a ship model propeller1

    van der Meulen, J.H.J. | IOS Press | 1971


    Further studies of propeller cavitation erosion

    Bjaerne, E. | Tema Archiv | 1983