The hydrodynamic interference of a hull-propeller combination moving at a great depth under the free surface is analyzed. On the basis of Oseen’s form of the motion equations, Euler’s theorem and Lagally’s exterior theorem (1922) for a potential stream with singularities a general formula for the thrust deduction fraction is derived.

    It is shown that the corresponding velocity field contains a system of helical vortices shed by a propeller of an infinite number of blades.

    In the limiting case of very light loading, the thrust deduction expression is reduced to a generalization of Fresenius’ expression (1921). Numerical values for different configurations of a prolate ellipsoid hull and propeller are presented in tabular form. The results indicate that the thrust deduction fraction exhibits a rapid diminution with the increase of the distance of the propeller from the stern and with the increase of the propeller diameter.

    These theoretical results are in complete agreement with experimental values measured by Weitbrecht (1941).


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Hydrodynamic influence of the propeller on a deeply submerged submarine1


    Contributors:

    Published in:

    Publication date :

    1958-04-01


    Size :

    12 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    Tandem Propeller Submarine Programs

    R. S. J. Rice / W. G. Wilson | NTIS | 1964


    Submarine water flow propeller

    LI WENZE | European Patent Office | 2015

    Free access