A theoretical and experimental investigation was performed to determine the steady-state propulsion characteristics of a cruising, ducted-propeller system for a submersible body of revolution. The most important aspects of the design method and numerical procedures are discussed. The theoretically predicted and experimental performance of the ducted propeller showed good agreement on power. However the experimental rpm was 6 percent higher than predicted; this difference is attributed to the fact that the propeller was underpitched due to an error in input to the computer program. The subject propulsion system was found to be less efficient than an optimum unshrouded, wake-adapted propeller, but the optimum rpm-diameter relationship was not determined for the ducted propeller. (Author)


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    Titel :

    Hydrodynamic Performance of a Proposed Cruising, Ducted Propeller for Submarines


    Beteiligte:

    Erscheinungsdatum :

    1971


    Format / Umfang :

    32 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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