A CFD (Computer Fluid Dynamics) Analysis Based Design Method for An Autonomous Underwater Vehicle Ducted Propeller

Tae-hwan Joung, Karl Sammut, Fangpo He

    Research output: Contribution to conferencePaper

    4 Citations (Scopus)

    Abstract

    This paper presents a method for estimating the propulsion performance and efficiency of an AUV thruster based on CFD (Computer Fluid Dynamics) analysis. A discussion of the factors influencing the numerical simulation accuracy and convergence rate, namely the number, size, and type of mesh elements required to describe each part of the model, is presented. The axial symmetry characteristics of the propeller, nozzle and the encompassing MRF (Moving Reference Frame) region have been used to reduce complexity and hence computation time. The paper, then, describes a method for estimating the motor horsepower and RPM of an AUV thruster based on simulated resistance tests and propeller open water (POW) tests. The engine horsepower for an AUV equipped with a ducted propeller and RPM is evaluated from the speed-power curve. The effectiveness of the ducted propeller is studied by comparing the performance characteristics for test results obtained without the nozzle versus those obtained for a range of nozzle shapes. The best design of the nozzle shape is finally determined from speed-power curves of the given duct.

    Original languageEnglish
    Pages435-442
    Number of pages8
    Publication statusPublished - 10 Sep 2010
    EventInternational Society of Offshore and Polar Engineering -
    Duration: 20 Jun 2010 → …

    Conference

    ConferenceInternational Society of Offshore and Polar Engineering
    Period20/06/10 → …

    Keywords

    • AUV (autonomous underwater vehicle)
    • CFD (computational fluid dynamics)
    • Nozzle propeller
    • Propeller open water test
    • Self propulsion test

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  • Cite this

    Joung, T., Sammut, K., & He, F. (2010). A CFD (Computer Fluid Dynamics) Analysis Based Design Method for An Autonomous Underwater Vehicle Ducted Propeller. 435-442. Paper presented at International Society of Offshore and Polar Engineering, .