Hydrodynamic Pressure Field on a Slender Ship Moving Over a High-Frequency Wavy Shallow Bottom

[+] Author and Article Information
A. Plotkin

Department of Aerospace Engineering, University of Maryland, College Park, Md.

J. Appl. Mech 43(2), 232-236 (Jun 01, 1976) (5 pages) doi:10.1115/1.3423815 History: Received August 01, 1975; Revised October 01, 1975; Online July 12, 2010


The hydrodynamic pressure field for the unsteady subcritical potential flow of a slender ship moving over a wavy wall in shallow water is analyzed using perturbation techniques. For the case of wall wavelength much smaller than the ship length but larger than the transverse ship dimensions, a combination of the methods of matched asymptotic expansions and multiple scales is used to obtain the lowest-order effect of the bottom variation.

Copyright © 1976 by ASME
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