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Eighteenth Symposium on
NAVAL HYDRODYNAMICS
Ship Motions
Ship Hydrodynamics
Experimental Techniques
Free-Surface Aspects
Wave/Wake Dynamics
Propeller/Hull/Appendage Interactions
Viscous Effects
sponsored jointly by
Office of Naval Research
The University of Michigan, Ann Arbor
Naval Studies Board
Commission on Physical Sciences, Mathematics,
and Applications
National Research Council
NATIONAL ACADEMY PRESS
Washington, D.C. 1991
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NOTICE: The project that is the subject of this report was approved by the Governing
Board of the National Research Council, whose members are drawn from the councils of the
National Academy of Sciences, the National Academy of Engineering, and the Institute of
Medicine. The members of the committee responsible for the report were chosen for their
special competences and with regard for appropriate balance.
This report has been reviewed by a group other than the authors according to
procedures approved by a Report Review Committee consisting of members of the National
Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine.
The National Academy of Sciences is a private, nonprofit, self-perpetuating society
of distinguished scholars engaged in scientific and engineering research, dedicated to the
furtherance of science and technology and to their use for the general welfare. Upon the
authority of the charter granted to it by the Congress in 1863, the Academy has a mandate
that requires it to advise the federal government on scientific and technical matters. Dr.
Frank Press is president of the National Academy of Sciences.
The National Academy of Engineering was established in 1964, under the charter of
the National Academy of Sciences, as a parallel organization of outstanding engineers. It is
autonomous in its administration and in the selection of its members, sharing with the
National Academy of Sciences the responsibility for advising the federal government. The
National Academy of Engineering also sponsors engineering programs aimed at meeting
national needs, encourages education and research, and recognizes the superior achievements
of engineers. Dr. Robert M. White is president of the National Academy of Engineering.
The Institute of Medicine was established in 1970 by the National Academy of
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Medicine.
The National Research Council was organized by the National Academy of Sciences
in 1916 to associate the broad community of science and technology with the Academy's
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scientific and engineering communities. The Council is administered jointly by both
Academies and the Institute of Medicine. Dr. Frank Press and Dr. Robert M. White are
chairman and vice chairman, respectively, of the National Research Council.
This work related to Department of Navy Contract N00014-87-C-0018 issued by the
Office of Naval Research under contract authority NR 201-124. However, the content does
not necessarily reflect the position or the policy of the Department of the Navy or the
govenment, and no official endorsement should be inferred.
The United States Government has at least a royalty-free, nonexclusive, and
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Partial support for the publication of these proceedings was provided by the Office of Naval
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and no endorsement should be inferred. In the interest of timely publication, the individual
authors' papers are presented here as received and with minimal editorial attention.
Library of Congress Catalog Card No. 91-62359
International Standard Book Number 0-309-04575-4
Copies available from:
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Naval Studies Board
Robert J. Hermann (Chair), United Technologies Corporation
George F. Carrier, Harvard University
Seymour J. Deitchman, Institute for Defense Analyses
John F. Egan, Lockheed Electronic Systems Group
Ivan A. Getting, Los Angeles, California
Ralph R. Goodman, University of Southern Mississippi
Willis M. Hawkins, Lockheed Corporation
David W. Hyde, Science Applications International Corporation
Sherra E. Kerns, Vanderbilt University
Ray L. Leadabrand, Leadabrand and Associates
John D. Lindl, Lawrence Livermore National Laboratory
Chester M. McKinney, Applied Research Laboratories, University of Texas (Austin)
William J. Moran, Los Altos, California
George A. Paulikas, The Aerospace Corporation
Alan Powell, University of Houston
Robert C. Spindel, Applied Physics Laboratory, University of Washington
J. Pace VanDevender, Sandia National Laboratories
Vincent Vitto, Lincoln Laboratories, Massachusetts Institute of Technology
George M. Whitesides, Harvard University
Navy Liaison Representatives
Frank E. Shoup III, Office of the Chief of Naval Operations
Ronald N. Kostoff, Office of Naval Research
Staff
Lee M. Hunt, Staff Director
Commission on Physical Sciences, Mathematics, and Applications
Norman Hackerman (Chair), Robert A. Welch Foundation
Peter J. Bickel, University of California at Berkeley
George F. Carrier, Harvard University
Herbert D. Doan, The Dow Chemical Company (retired)
Dean E. Eastman, IBM, T.J. Watson Research Center
Marye Anne Fox, University of Texas
Phillip A. Griffiths, Duke University
Neal F. Lane, Rice University
Robert W. Lucky, AT&T Bell Laboratories
Christopher F. McKee, University of California at Berkeley
Richard S. Nicholson, American Association for the Advancement of Science
Jeremiah P. Ostriker, Princeton University Observatory
Alan Schriesheim, Argonne National Laboratory
Roy F. Schwitters, Superconducting Super Collider Laboratory
Kenneth G. Wilson, Ohio State University
Norman Metzger, Executive Director
. . .
111
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FOREWORD
The Eighteenth Symposium on Naval Hydrodynamics was held in
Ann Arbor, Michigan, on August 19-24, 1990. This international
symposium was jointly sponsored by the Office of Naval Research
(Fluid Dynamics Program), the National Research Council (Naval
Studies Board), and the University of Michigan (Department of Naval
Architecture and Marine Engineering). This biennial symposium
promotes the exchange of technical developments in naval research of
common interest to all the countries of the world. The forum
encourages both formal and informal discussion of the presented
papers, and the occasion provides opportunity for direct
communication between international peers.
Nearly 200 participants from some 20 countries attended the
symposium, representing a mixture of experience and expertise from
newly graduated students to scientists of established international
repute. Fifty papers were presented in seven topical areas covered by
the symposium: ship motions, ship hydrodynamics, experimental
techniques, free-surface aspects, wave/wake dynamics,
propeller/hull/appendage interactions, and viscous effects. These
topics were chosen for this particular meeting because of recent
advances that have been made in these areas. Examples of significant
advances presented in the papers are the solution of nonlinear
equations for ship motions and ship hydrodynamics, the small-scale
dynamics of cavitation inception, development and implementation of
v
multipoint, free-surface measurements, modeling of solitons in
Kelvin wakes, reconnection phenomena for vortex interactions with
the free surface, Navier-Stokes solutions for propellers, and the
inclusion of the hull boundary layer in predictions of hull flows.
This brief list illustrates the quality and timeliness of the symposium
for naval hydrodynamics.
The success of this symposium is the result of hard work on the
part of many people. There was, of course, the Organizing and
Paper Selection Committee: Dr. Edwin Rood and Mr. James Fein
(Office of Naval Research), Mr. Lee Hunt (National Research
Council), Prof. Robert Beck and Prof. Armin Troesch (University of
Michigan), Dr. Gerard van Oortmerssen (MARIN), Dr. William
Morgan and Mr. Justin McCarthy (David Taylor Research Center).
The contribution of this committee was certainly the cornerstone for
the success of the symposium. However, the administrative
preparation and execution would not have been possible without the
support of Ms. Elizabeth Lucks and Mrs. Susan Campbell of the
Naval Studies Board of the National Research Council, and Ms.
Virginia Konz and Ms. Lisa Payton and the rest of the staff of the
Department of Naval Architecture and Marine Engineering at the
University of Michigan. Appreciation is extended to the Towing
Tank staff at the University of Michigan for the informative
demonstration of their unique research capabilities.
Edwin P. Rood
Office of Naval Research
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