P1988-3
Sixteenth Symposium on
NAVAL
HYDRODYNAMICS
Ship Wakes
Large Amplitude Waves
Real Fluid Effects in Ship Hydrodynamics
Fluid-Structure Interaction
Frontier Problems in Hydrodynamics
edited by
WUliam C. Webster
Sponsored jointly by:
Office of Naval Research Naval Shidies Board National Research Council
Department of Naval Architecture & Offshore Engineering University of California, Berkeley
University Extension
FORWARD
The Sixteenth Symposium on Naval Hydrodynamics was held at the University of California, Berkeley on July 13-18. 1986 under the Joint sponsorship ofthe Ofllce of Naval Research, the Univer-sity of California at Berkeley, and the National Research Council. The symposium was the result of two years of dedicated work of many people Involved in planning, organizing, and executing the tasks Involved.
The five major themes chosen for the symposium were: Ship Wakes; Large Amplitude Waves Including Breaking Efiects; Real Fluid Effects in Ship Hydrodynamics; Fluid-Structure InteracUon; and Frontier Problems in Hydrodynamics. Thirty seven papers of excellent quality were presented in nine sessions. The symposium, as in the past, provided a gathering place for intemaUonal colleagues who are seriously Interested In advancing the state-of-the-art In ship hydrodynamics research. The participants represented as many as eighteen countries. The symposium was highlighted by the va-riety of new subjects introduced. Some of these subjects are ship wake images by satellites and com-puter-aided flow visualization. The solutions of these complex problems reflect the developing trend in scientific research in general that multi-disciplinary efforts are required. Also, a noticeable change was the signiflcant Increase in the number of young investigators participating in the sympo-sium through paper presentations and discussions, i t is an encouraging sign for the ship hydrody-namics research community which shows promise of its future growth. The symposium has also at-tracted many senior Investigators of intemational reputation, among whom are six distinguished members of the U.S. National Academy of Engineering and NaUonal Academy of Sciences. They have certainly contributed to the technical integrity of the Symposium.
It is almost impossible to acknowledge all the contributions made by many people to the suc-cess of the Sixteenth Symposium. Only a few contributions can be mentioned here. Among those contributors, the flrst and foremost Is Professor WUllam C. Webster of the Department of Naval Arch-itecture & Offshore Engineering, the University of Calffomla at Berkeley. Bill served as the chairman of the Organizing Committee and was the central coordinator for all acUviUes Involved In the or-ganization and management of the symposium. He was ably assisted by Ms. Lydia Brledis and Ms. Leslie Service of the Department of Naval Architecture and Offshore Engineering and Ms. Linda Reed and Ms. Karen Anderson of the University Extension of the University of Calffomla. Berkeley. This symposium would not have been successful without the dedicated long hours of service provided by some ofthe Paper Selection Committee: John V. Wehausen, ofthe University of Calffomla. Berkeley. Marshall P. Tulin. of the University of Calffomla. Santa Barbara. William B. Morgan, of the David Tay-lor Naval Ship R&D Center, and V. C. Patel, of the University of Iowa.
Acknowledgement would not serve its full purpose without recognizing the quiet and dedicated behind-the-scenes service provided by Mr. Lee M. Hunt, the Executive Director of the Naval Studies Board ofthe Naval National Research Council, and Ms. Elizabeth Lucks of his staff. The Naval Studies Board has rendered signiflcant moral and administrative support for the Ofiice of Naval Research In many of the past hydrodynamics symposia and its willingness to continue its assistance in the future is certainly a heartfelt encouragement.
Finally, a special and personal expression of gratitude is extended to Drs. Robert E. Whitehead and Michael M. Reischman of the Ofiice of Naval Research, and Mr. Vincent J. Monacella and Dr. William B. Morgan of the David Taylor Naval Ship R&D Center of their Invaluable counsel and en-couragement from the beginning lo the end ofthe symposium.
Choung Mook Lee Office of Naval Research
CONTENTS
Session I
SHIP WAVES & WAKES
M . P. Tulin. Chairman Surface Wave Wakes and Intemal Wave Wakes
Produced by Surface Ships B. A Hughes
Far Fleld Features o f t h e Kelvin Wake A. Bamell and F. Noblesse
Trailing-Vortex Wakes on the Free Surface T. Sarpkaya
Session I I
LARGE WAVE PROBLEMS
T. F. Ogilvie. Chairman Nonlinear Calculation of Breaking and Non-Breaking Waves Behind a Two-DImensional Hydrofoil
R. M. Coleman
Some Discussions on the Free Surface Flow Around the Bow H. Maruo and M. Ikehata
Large. Steep Waves. Wave Grouping and Breaking M.-Y. Su
A Theory of Spilling Breakers M. P. Tulin and R. Colnte Steep and Breaking Deep Water Waves
W. W. Schultz, S. E. Ramberg and O. M, Griflln
Session III
LARGE WAVE PROBLEMS H
R. F. Beck, Chairman Study of Nonlinear Axlsymmetric Body-Wave Interactions
D. G. Dommerrauth and D. K. Yue
Nonlinear Wave Maker In a Channel Operating at Cut-Off Frequencies: Theory and Experiment
E. Kit. T. Miloh. and L . Shemer Steady Flow Past a Step
P. M. Naghdl and L. Vongsampigoon Some Soliton Calculations
R C. Ertekin and J . V. Wehausen
Generation of Internal Runaway Solltons by Moving Disturbances J . Zhu, T. Y. Wu. and G. T. Yates
Session IV
FRONTIER HYDRODYNAMICS v. C. Patel, Chairman
Mlcrobubble Drag Reduction 199 C L . Merkle, S. Deutsch. S. Pal, and J. Clmbala, W. Seellg
Computer-Aided Flow Visualization 216 D. Rockwell, C. Gumas. P. Kerstens. J. Backenstose.
A. Ongoren. J. Chen, and D. Lusseyran
Session V
REAL FLUID EFFECTS I
W. B. Morgan. Chairman
Optimum Body Profiles with Minimum Drag In 234 Two-Dimensional Oseen Flow
M. Bessho, Y. Himeno
Viscous -Flow Computation of Propeller-Hull Interaction 246 F. Stem, V. C. Patel. H. T. Kim, and H. C. Chen
Propeller Interaction with Axlsymmetric Sheared Onset Flow 268 T. Brockett
Experimental Investigation of Flow Around a Marine Propeller 289 and Application of Panel Method to the Propeller Theory
K. Koyama A. Kakugawa and M . Okamoto
Session V I
REAL FLUID EFFECTS H
M. W. C. Oosterveld. Chairman
Some Time-Dependent Features of Turbulent. 312 Appendage-Body Juncture Flows
W. J. Devenport and R L. Simpson
Numerical Analysis of the Viscous Flow Field Resulting 336 f r o m a Hull-Sail Interaction
R. Levy and S. J. Shamroth
Three-Dimensional Flow SeparaUon and the Effect of Appendages 352 M.-S. Chang and L. P. Purtell
Study on the Characteristics of Propeller Cavitation and Its Noise 371 H . Yuasa. H . Kamilrisa. and T. Nojirl
Experimental and Analytical Techniques for the Study of 387 Unsteady Propeller Sheet Cavitation
Session VII
UNSTEADY FLOW PROBLEMS
H. Maruo, Chairman Two Dimensional Transient Motions with Large Amplitude by Time Domain Method
Y.-J. K i m & J . H. Hwang
Quadratic Response to Short-Crested Seas J . F. DalzeU
Wave Drift Forces in Current R. H . M. Huijsmans
The Dynamics of Waves at the Interface Between a Two-Layer. Viscoelastic Coating and a Fluid Flow
J . H . Duncan
Ship Maneuvering In Waves W. R. McCreight
Session VIII
FLUID-STRUCTURE INTERACTION
T. Y. Wu. Chairman Periodic and Multiple Periodic Behavior of
Locked-In Vortex Shedding Y. LeCointe and J . Piquet
Simulation of the Viscous Flow Over a Cylinder in a Wave Field E. C. Tiemroth
Nonlinear Forces Caused by Breaking Waves
H. Miyata. H . Kajltanl. M . Zhu andT. Kawano Hydrodynamic Impact Loads on Three-Dlmenslonal Bodies
A W . Troesch and C.-G. Kang
Tlieoretical Investigation on the Wave Impact Loads on Ships I. Watanabe
Session IX
STEADY FLOW PAST BODIES
J. V. Wehausen, Chairman Ranklne Source Methods for Numerical Solutions of the Steady Wave Resistance Problem
G. Jensen. Z.-X. Ml. and H. Södlng
A Calculation Method for the Lifting Potential Flow Around Yawed Surface-Piercing 3-D Bodies
F. Xia and L. Larsson
Minimization of Resistance of Slowly Moving. Full Hull Forms i n Short Waves