Twenty-First Symposium on
NAVAL HYDRODYNAMICS
Wave-Induced Ship Motions and Loads
Frontier Experimental Techniques
Wake Dynamics
Viscous Ship Hydrodynamics
Water Entry
Wave Hydrodynamics/Stratified Flow
Bluff Body Hydrodynamics
Hydrodynamics in Ship Design
Shallow Water Hydrodynamics
Cavitation and Bubbly Flows
Propulsor Hydrodynamics/Hydroacoustics
Fluid Dynamics in the Naval Context
CFD Validation
Twenty-First Symposium on
NAVAL HYDRODYNAMICS
Wave-Induced Ship Motions and Loads
Frontier Experimental Techniques
Wake Dynamics
Viscous Ship Hydrodynamics
Water Entry
Wave Hydrodynamics/Stratified Flow
Bluff Body Hydrodynamics
Hydrodynamics in Ship Design
Shallow Water Hydrodynamics
Cavitation and Bubbly Flows
Propulsor Hydrodynamics/Hydroacoustics
Fluid Dynamics in the Naval Context
CFD Validation
Sponsored Jointly by
NATIONAL ACADEMY PRESS
Washington, D.C.
1997
The National Research Council serves as an independent advisor to the federal government on scientific and technical questions of national importance. Established in 1916 under the congressional charter of the private, nonprofit National Academy of Sciences, the Research Council brings the resources of the entire scientific and technical community to bear on national problems through its volunteer advisory committees. Today the Research Council stands as the principal operating agency of both the National Academy of Sciences and the National Academy of Engineering and is administered jointly by the two academies and the Institute of Medicine. The National Academy of Engineering and the Institute of Medicine were established in 1964 and 1970, respectively, under the charter of the National Academy of Sciences.
The National Research Council has numerous operating units. One of these is the Naval Studies Board, which is charged with conducting and reporting on surveys and studies in the field of scientific research and development applicable to the operation and function of the Navy.
A portion of the work done to prepare this document was performed under Department of Navy Contract N00014-95-1-1189 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 government, and no official endorsement should be inferred.
The United States Government has at least a royalty-free, nonexclusive, and irrevocable license throughout the world for government purposes to publish, translate, reproduce, deliver, perform, and dispose of all or any of this work, and to authorize others so to do.
Copyright 1997 by the National Academy of Sciences. All rights reserved.
Printed in the United States of America
NAVAL STUDIES BOARD
David R.Heebner,
Science Applications International Corporation
(retired), Chair
George M.Whitesides,
Harvard University,
Vice Chair
Albert J.Baciocco, Jr.,
The Baciocco Group, Inc.
Alan Berman,
Applied Research Laboratory, Pennsylvania State University
Norman E.Betaque,
Logistics Management Institute
Norval L.Broome,
Mitre Corporation
Gerald A.Cann,
Raytheon Company
Seymour J.Deitchman,
Chevy Chase, Maryland,
Special Advisor
Anthony J.DeMaria,
DeMaria ElectroOptics Systems, Inc.
John F.Egan,
Lockheed Martin Corporation
Robert Hummel,
Hummel Enterprises, Inc.
David W.McCall,
Far Hills, New Jersey
Robert J.Murray,
Center for Naval Analyses
Robert B.Oakley,
National Defense University
William J.Phillips,
Northstar Associates, Inc.
Mara G.Prentiss,
Jefferson Laboratory, Harvard University
Herbert Rabin,
University of Maryland
Julie JCH Ryan, Booz, Allen and Hamilton
Harrison Shull,
Monterey, California
Keith A.Smith,
Vienna, Virginia
Robert C.Spindel,
Applied Physics Laboratory, University of Washington
David L.Stanford,
Science Applications International Corporation
H.Gregory Tornatore,
Applied Physics Laboratory, Johns Hopkins University
J.Pace VanDevender,
Prosperity Institute
Vincent Vitto,
Lincoln Laboratory, Massachusetts Institute of Technology
Bruce Wald,
Arlington Education Consultants
Navy Liaison Representatives
Paul G.Blatch,
Office of the Chief of Naval Operations (N911T1)
Ronald N.Kostoff,
Office of Naval Research
Ronald D.Taylor, Director
COMMISSION ON PHYSICAL SCIENCES, MATHEMATICS, AND APPLICATIONS
Robert J.Hermann,
United Technologies Corporation,
Co-Chair
W.Carl Lineberger,
University of Colorado,
Co-Chair
Peter M.Banks,
Environmental Research Institute of Michigan
Lawrence D.Brown,
University of Pennsylvania
Ronald G.Douglas,
Texas A&M University
John E.Estes,
University of California at Santa Barbara
L.Louis Hegedus,
Elf Atochem North America, Inc.
John E.Hopcroft,
Cornell University
Rhonda J.Hughes,
Bryn Mawr College
Shirley A.Jackson,
U.S. Nuclear Regulatory Commission
Kenneth H.Keller,
University of Minnesota
Kenneth I.Kellermann,
National Radio Astronomy Observatory
Margaret G.Kivelson,
University of California at Los Angeles
Daniel Kleppner,
Massachusetts Institute of Technology
John Kreick, Sanders,
a Lockheed Martin Company
Marsha I.Lester,
University of Pennsylvania
Thomas A.Prince,
California Institute of Technology
Nicholas P.Samios,
Brookhaven National Laboratory
L.E.Scriven,
University of Minnesota
Shmuel Winograd,
IBM T.J.Watson Research Center
Charles A.Zraket,
Mitre Corporation
(retired)
Norman Metzger, Executive Director
FOREWORD
The Twenty-First Symposium on Naval Hydrodynamics was held in Trondheim, Norway, from June 24–28, 1996. This international symposium was organized jointly by the Office of Naval Research (Mechanics and Energy Conversion S&T Division), the National Research Council (Naval Studies Board), and the Norwegian University of Science and Technology. This biennial symposium promotes the technical exchange of naval research developments 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 an opportunity for direct communication between international peers.
More than 170 participants from 23 countries attended the symposium. The attendees represented a mixture of experience and expertise, as some attendees were newly graduated students and others were of established international repute. Seventy-two papers were presented in thirteen topical areas covered by the symposium, including wave-induced ship motions and loads, viscous ship hydrodynamics, wake dynamics, wave hydrodynamics, cavitation and bubbly flows, propulsor hydrodynamics/hydroacoustics, water entry, bluff body hydrodynamics, shallow water hydrodynamics, fluid dynamics in the naval context, CFD validation, frontier experimental techniques, and hydrodynamics in ship design. These topical areas were chosen for this particular meeting because of the recent advances made in them. Examples of the significant advances presented in the papers are the high-resolution numerical solution of bow waves for slender hull forms showing the origin of bow waves in the bow splash, the influence of cavitation nuclei on the cavitation bucket for full-scale predictions, the coupling of hydrodynamic impact and elastic response during slamming, and the development of a two-fluid turbulent flow computational method for surface ships. This brief list illustrates the quality and timeliness of the symposium for naval hydrodynamics.
The symposium featured invited lectures each morning. The lectures were presented by M. Longuet-Higgins, H.Miyata, P.Bearman, J. Milgram, and M.Sevik and covered topics from breaking waves to bluff body wakes to hydroacoustics, as well as CFD simulations and hydrodynamics in sailing. These lectures by prominent international experts set the pace for the sessions that followed.
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 consisting of myself, Dr. Patrick Purtell, and Mr. James Fein (Office of Naval Research), Dr. Ronald Taylor (National Research Council), Prof. Odd Faltinsen (Norwegian University of Science and Technology), Dr. William Morgan (David Taylor Model Basin), and Mr. John Dalzell (Journal of Ship Research). The contribution of this committee was certainly the cornerstone for the success of the symposium. However, the administrative preparation and execution, and the production of this archival volume, would not have been possible without the support of Mrs. Susan Campbell, Mrs. Dixie Gordon, and the staff of the Naval Studies Board of the National Research Council. Special appreciation is also extended to Ms. Emma Kenney, from my office, for handling the abstract collection and following through with the preparation of the discussion sections.
Edwin P.Rood
Office of Naval Research
CONTENTS
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Dr. Fred E. Saalfeld |
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Invited Lecture |
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Wave-Induced Ship Motions and Loads |
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Wave-Induced Motions and Loads |
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Frontier Experimental Techniques |
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Wave-Induced Ship Motions and Loads |
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Wake Dynamics |
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Invited Lecture |
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Time-Marching CFD Simulation for Moving Boundary Problems |
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Viscous Ship Hydrodynamics |
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Yaw Effects on Model-Scale Ship Flows |
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Water Entry |
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Viscous Ship Hydrodynamics |
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Wave Hydrodynamics/Stratified Flow |
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Freak Waves—A Three-Dimensional Wave Simulation |
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Invited Lecture |
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Bluff Body Hydrodynamics |
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Invited Lecture |
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Hydrodynamics in Advanced Sailing Design |
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Hydrodynamics in Ship Design |
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Divergent Bow Waves |
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Shallow Water Hydrodynamics |
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Cavitation and Bubbly Flows |
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Wave Hydrodynamics/Stratified Flow |
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Steep and Breaking Faraday Waves |
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Cavitation and Bubbly Flows |
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Invited Lecture |
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Hydroacoustic Considerations in Marine Propulsor Design |
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Propulsor Hydrodynamics/Hydroacoustics |
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Fluid Dynamics in the Naval Context |
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Advances in Panel Methods |
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