A two-dimensional time-domain constant potential panel method was used for analysis of chordwise flexible oscillating hydrofoils as oscillating propulsors. The oscillatory motions as well as the chordwise deflections were of large amplitude. Results are presented of propulsive thrust coefficient and efficiency over ranges of motion parameters including varied reduced frequency, pitch amplitude and feathering parameter; heave amplitude/chord ratio; pitching axis position; phase between pitching and heaving motions; and deflected shape. The ranges were taken about a favourable operating point for a flexible oscillating NACA 0012 foil. A peak in propulsive efficiency was found for each motion parameter variation studied. Propulsive efficiency varied strongly with changes in heave amplitude/chord ratio, pitch amplitude and phase between heaving and pitching motions, but less strongly for variations in pitching axis position and flexibility.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Performance of Chordwise Flexible Oscillating Propulsors Using a Time-Domain Panel Method


    Published in:

    Publication date :

    1995-01-01


    Size :

    14 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    Generating maneuvering forces with oscillating propulsors

    Yudin, David J. / Watson, Ethan / Floryan, Daniel et al. | AIAA | 2024


    PROPULSORS

    JULLIAND LIONEL / GRALL THEO / BAERD HENRI et al. | European Patent Office | 2024

    Free access

    PROPULSORS

    JULLIAND LIONEL / GRALL THEO / BAERD HENRI et al. | European Patent Office | 2023

    Free access