Investigation of a ship's propeller jet using momentum decay and energy decay

Wei-haur Lam, Y.C. Song, S. Raghunathan, Gerard Hamill, Desmond Robinson

    Research output: Contribution to journalArticle

    8 Citations (Scopus)

    Abstract

    Previous researchers use the velocity decay as an input to investigate the ship’s propeller jet induced scour. A researcher indicated that most of the equations used to predict the stability of various protection systems are often missing a physical background. The momentum decay and energy decay are currently proposed as an initial input for seabed scouring investigation, which are more sensible in physics. Computational fluid dynamics (CFD) and laser Doppler anemometry (LDA) experiments are used to obtain the velocity data and then transforming into momentum and energy decays. The findings proposed several exponential equations of velocity, momentum and energy decays to estimate the region exposed to the seabed scouring.
    LanguageEnglish
    Pages1-6
    Number of pages6
    JournalCanadian Journal of Civil Engineering
    Volume38 (1-11)
    Issue number6
    DOIs
    Publication statusPublished - May 2011

    Fingerprint

    Ship propellers
    momentum
    Momentum
    energy
    Scour
    scour
    computational fluid dynamics
    Computational fluid dynamics
    physics
    Physics
    laser
    Lasers
    ship
    experiment
    Experiments

    Cite this

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    abstract = "Previous researchers use the velocity decay as an input to investigate the ship’s propeller jet induced scour. A researcher indicated that most of the equations used to predict the stability of various protection systems are often missing a physical background. The momentum decay and energy decay are currently proposed as an initial input for seabed scouring investigation, which are more sensible in physics. Computational fluid dynamics (CFD) and laser Doppler anemometry (LDA) experiments are used to obtain the velocity data and then transforming into momentum and energy decays. The findings proposed several exponential equations of velocity, momentum and energy decays to estimate the region exposed to the seabed scouring.",
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    Investigation of a ship's propeller jet using momentum decay and energy decay. / Lam, Wei-haur; Song, Y.C.; Raghunathan, S.; Hamill, Gerard; Robinson, Desmond.

    In: Canadian Journal of Civil Engineering, Vol. 38 (1-11), No. 6, 05.2011, p. 1-6.

    Research output: Contribution to journalArticle

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    AU - Raghunathan, S.

    AU - Hamill, Gerard

    AU - Robinson, Desmond

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    AB - Previous researchers use the velocity decay as an input to investigate the ship’s propeller jet induced scour. A researcher indicated that most of the equations used to predict the stability of various protection systems are often missing a physical background. The momentum decay and energy decay are currently proposed as an initial input for seabed scouring investigation, which are more sensible in physics. Computational fluid dynamics (CFD) and laser Doppler anemometry (LDA) experiments are used to obtain the velocity data and then transforming into momentum and energy decays. The findings proposed several exponential equations of velocity, momentum and energy decays to estimate the region exposed to the seabed scouring.

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