In order to relate nuclei size distributions with inception cavitation in cavitation facilities, a test program was conducted at the Grand Tunnel Hydrodynamique (GTH) of the Bassin d'Essais des Carenes. The GTH, which has a complete air control system including dissolved gas and nuclei (microbubbles) control, offers the opportunity to answer this question. The tests were conducted on the three 34 mm diameter propellers used by Kuiper (1981), each of these propellers being characterized by a different cavitation type: bubble, sheet and vortex cavitation. The water nuclei content correspond to strong degassed water (maximum tension), low injection of medium size nuclei (medium tension-low content), large injection of medium size nuclei (medium tension-high content) and large injection of large nuclei (minimum tension). By injecting medium size nuclei for a low content and a high content, we can examine the influence of the number of nuclei on the cavitation inception characteristic. During all the tests, the dissolved air content was kept constant. The GTH on-line Cavitation Nuclei Counter (Centerbody Venturi) was used to measure both the water nuclei distribution and the liquid tension. Comparisons are made with the calibrated Centerbody Venturi, a Phases Doppler Particles Analyzer (PDPA) and Holographic measurements.


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    Titel :

    Influence of the nuclei on the cavitation inception for different types of cavitation on ship propellers


    Weitere Titelangaben:

    Einfluß der Keime auf den Kavitationsbeginn für verschiedene Kavitationsarten an Schiffsschrauben


    Beteiligte:
    Gindroz, B. (Autor:in) / Billet, M.L. (Autor:in)


    Erscheinungsdatum :

    1998


    Format / Umfang :

    8 Seiten, 13 Bilder, 5 Tabellen, 47 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Nuclei and Acoustic Cavitation Inception on Ship Propellers

    Gindroz, B. / Billet, M. L. | British Library Conference Proceedings | 1994


    Study on Tip Vortex Cavitation Inception for Navy Propellers

    Friesch, J. / Johannsen, C. / Direction des Constructions Navales et al. | British Library Conference Proceedings | 1995



    Cavitation diagrams for cargo ship propellers

    Castagneto, E. / Suppan, F. | Engineering Index Backfile | 1962