Compact zero-mass pulsatile jet actuators are proposed for low-speed maneuvering and station keeping of small underwater vehicles. The flow field of such jets are initially dominated by vortex ring formation. Pinched-off vortices characterize the extremum impulse accumulated by the leading vortex ring in a vortex ring formation process. Relevant parameters in this process are identified in order to design simple and low cost zero-mass pulsatile jet actuators. Thrust optimization of synthetic jets for maximal thrust generation is achieved by enforcing the jet formation number to be around 4. Prototypes of such actuators are built and tested for underwater maneuvering and propulsion. The actuators could be used in two ways: (i) to improve the low-speed maneuvering and station keeping capabilities of traditional propeller driven underwater vehicles, and (ii) as a synthetic jet for flow control and drag reduction at higher cruising speeds. A model for calculating the rotation rate of the underwater vehicle is also proposed and verified.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Pulsatile vortex generators for low-speed maneuvering of small underwater vehicles


    Additional title:

    Pulsierende Wirbelgeneratoren für das Manövrierern von kleinen Unterwasserfahrzeugen mit geringer Geschwindigkeit


    Contributors:

    Published in:

    Ocean Engineering ; 33 , 16 ; 2209-2223


    Publication date :

    2006


    Size :

    15 Seiten, 35 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Low-speed maneuvering hydrodynamics of fish and small underwater vehicles

    Bandyopadhyay, P.R. / Castano, J.M. / Rice, J.Q. et al. | Tema Archive | 1997



    Self-Propelled Maneuvering Underwater Vehicles

    McDonald, H. / Whitfield, D. / United States; Office of Naval Research; Mechanics and Energy Conversion S&T Division et al. | British Library Conference Proceedings | 1997



    AIAA-2004-6386 Zero-mass Pulsatile Jets for Unmanned Underwater Vehicle Maneuvering

    Mohseni, K. | British Library Conference Proceedings | 2004