3D Efflux Velocity Characteristics of Marine Propeller Jets

G. A. Hamill, C. Kee, D. Ryan

    Research output: Contribution to journalArticle

    17 Citations (Scopus)
    537 Downloads (Pure)

    Abstract

    The determination of the efflux velocity is key to the process of calculating the subsequent value of velocity at any other location within a propeller jet. This paper reports on the findings of an experimental investigation into the magnitude of the efflux velocities within the jets produced by four differing propellers. Measurements of velocity have been made using a 3D LDA system with the test propellers operating at a range of rotational speeds which bound typical operational values. Comparisons are made with existing predictive theories and to aid design engineers, methods are presented by which the 3D efflux velocity components, as well as the resultant efflux value, can be determined.
    Original languageEnglish
    Pages (from-to)62-75
    Number of pages14
    JournalProceedings of the ICE - Maritime Engineering
    Volume168
    Issue number2
    DOIs
    Publication statusPublished - Jun 2015

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    Propellers
    Design aids
    Engineers

    Keywords

    • Coastal Engineeering,

    Cite this

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    3D Efflux Velocity Characteristics of Marine Propeller Jets. / Hamill, G. A.; Kee, C.; Ryan, D.

    In: Proceedings of the ICE - Maritime Engineering, Vol. 168, No. 2, 06.2015, p. 62-75.

    Research output: Contribution to journalArticle

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    AU - Hamill, G. A.

    AU - Kee, C.

    AU - Ryan, D.

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    N2 - The determination of the efflux velocity is key to the process of calculating the subsequent value of velocity at any other location within a propeller jet. This paper reports on the findings of an experimental investigation into the magnitude of the efflux velocities within the jets produced by four differing propellers. Measurements of velocity have been made using a 3D LDA system with the test propellers operating at a range of rotational speeds which bound typical operational values. Comparisons are made with existing predictive theories and to aid design engineers, methods are presented by which the 3D efflux velocity components, as well as the resultant efflux value, can be determined.

    AB - The determination of the efflux velocity is key to the process of calculating the subsequent value of velocity at any other location within a propeller jet. This paper reports on the findings of an experimental investigation into the magnitude of the efflux velocities within the jets produced by four differing propellers. Measurements of velocity have been made using a 3D LDA system with the test propellers operating at a range of rotational speeds which bound typical operational values. Comparisons are made with existing predictive theories and to aid design engineers, methods are presented by which the 3D efflux velocity components, as well as the resultant efflux value, can be determined.

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    DO - 10.1680/jmaen.14.00019

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