P 2 0 0 6 - 1
21st International Workshop
on Water Waves and Floating Bodies
Editors: C IVI Linton, IVI Mclver and P Mclver
Loughborough University
2 - 5 April 2006
Delft University of Technology
Ship Hydromechanics Laboratory
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21st International Workshop
on Water Waves and Floating Bodies
Editors: C IVI Linton, IVI Mclver and P Mclver
Loughborough University
2 - 5 April 2006
Foreword
The hitemational Workshop on Water Waves and Floating Bodies is an annual meeting of engineers and scientists with a particular interest in water waves and their effects on floating and submerged bodies. The workshop was initiated by Professor D. V. Evans (University of Bristol) and Professor J. N . Newman (MIT) following informal meetings between their research groups in 1984. Fkst intended to promote communications between workers in the UK and the USA, the interest and participation quickly spread to include researchers from many other countries. In the organization and conduct of the workshop, particular emphasis is given to the participation of younger researchers, interdisciplinary discussion between engineers and scientists, and the presentation of preliminary work before it is published elsewhere. Attendance is restricted to the authors of submitted extended abstracts that are reviewed for acceptance by a small committee. These proceedings include the extended absfract for every presentation made at the 21*' workshop. The proceedings of previous workshops are available online at www.rina.org.uk thanks to the cooperation of the Royal Institution of Naval Architects. This 21*' Intemational Workshop on Water Waves and Floating Bodies is dedicated to Professor David Evans on the occasion of his retirement. It is particularly appropriate that this workshop takes place m Loughborough as we all had the privilege of working with David at early stages in our careers.
Chris Linton, Maureen Mclver, Phil Mclver
Host Institution for the 21'* Workshop
Loughborough University
Organising Comittee
Chris Linton, Maureen Mclver, Phil Mclver, Jackie Baseley
Cover Illustration
David Evans
As noted in the foreword to these proceedings, this workshop grew out of discussions between David Evans and Nick Newman in the early 1980s, and the first workshop took place at MT in February 1986. Last year in Svalbard, the workshop was dedicated to Nick Newman on ihe occasion of his 70"' birthday. With this 21" meeting in Loughborough the workshop has "come of age" and it is an appropriate time and place to celebrate the achievements of David Evans who is due to retire later this year. Nick Newman has kindly provided the following commentary that encompasses both David's career and the development of this workshop.
David Evans came to the United States to work as a Post-Doc at the Stevens histitute o f Technology, after completing his Ph.D. in Manchester. We fu-st met during a meeting o f the H-5 Panel. Since we had both studied under Fritz Ursell, we felt an immediate sense of kinship.
Meetings of the H-5 Panel took place under the aegis of the Society of Naval Architects and Marine Engineers. These meetings brought together the small group of researchers working in the field of 'Analytical Ship-Wave Relations'. The direct technical advances resulting from these meetings were less important than the oppormnities for informal exchange, especially between established senior people and aspiring younger workers. Most of the Panel Members were American, but foreign guests frequently attended and added greatly to the value of these meetings.
When David's Post-Doc at Stevens was finished, I was able to offer him a similar position in 1968-9 at MIT. That was a wonderful year for me and my sUidents. David extended our mathematical horizons, and entertained us with his Welsh humor. We were sorry when he left, but shared his pleasure that he was going to a promising new position at Bristol.
David's subsequent career at Bristol has added another chapter to the remarkable progression of British applied mathematicians who have studied the hydrodynamics o f floating bodies. In this respect, David Evans follows in the footsteps of Kelvm, Lamb, Havelock, and Ursell. David was able to lead a group of research students and post-docs, working on a scale that was not possible for his predecessors. But that is not to unply that David was primarily an admbiisfrator. His own contributions are well known, includmg scattering by multiple bodies, wave-power absorbers, and frapping structures, to name but a few high peaks of his research. Remarkably, in parallel with these activities, David did fill important adminisfrative positions, ultimately servmg as Pro-Vice Chancellor of Bristol University. Fortunately this did not mterfere with his participation in tiie Workshops.
conjunction with the 1984 Naval Hydrodynamics Conference in Hamburg. That ad hoc event led us to think of an annual meeting, which originally was envisaged to include
SUidents and colleagues from tiie UK and USA. Serious planning took place when tiie
Evans family came to Lymmgton, on 31 July 1985, to visit witii my wife and myself on our boat. Little did we imagine, as we drafted tiie announcement and requfrements for attendance, tiiat these would be copied verbatim for so many years in different parts of the world.
The Intemational Workshops on Water Waves and Floating Bodies (IWWWFB), as tiiey cam_e to be known, could not have been started witiiout financial support. For the first Workshop I approached George Lea, in tiie US National Science Foundation. His response was positive, but he was concerned tiiat tiie proposed meeting should result in significant work. The name 'Workshop' was chosen to satisfy this concem. The rest, as they say, is history. But I also want to note tiiat, while David and I were the first organizers and hosts, tiie subsequent remarkable success of the IWWWFB is due to the many colleagues who have taken up where we left off.
21^* International Workshop on Water Waves and Floating Bodies
Contents
Biggs N.R.T., Chamberlain P.G. 1
An approximation to two-dimensional wave scattering by topography using orthogonal curvilinear coordmates
Bonnefoy F., Eatock Taylor R., Taylor P.H., Ferrant P. 5
A high order spectral model for wave interaction with a bottom mounted cylinder
Casetta L., Pesce C P . 9
The proper definition of the added mass for the water entry problem
Chen X.B., Lu D.Q., Duan W.Y., Chwang A.T. 1
3
Potential flow below the capillary surface of a viscous fluid
Colagrossi A., Palladino F., Greco M., Lugni C , Faltinsen O.M. 1
7
Experimental and numerical investigation of 2D sloshing: scenarios near the critical filling depth
Colicchio G., Greco M., Faltinsen O.M, 21
Fluid-body mteraction on a Cartesian grid: dedicated studies for a CFD validation
Cooker M.J. 25
Sloshing water waves in fi-eely moving tank
Das D., Mandal B.N. 29
Oblique wave scattering by a circular cylinder in two-layer fluid with an ice-cover
Delhommeau G., Guilbaud M., Noblesse F. 33
A simple theory of overturning ship bow waves
Eatock Taylor R., Zang J., Bai W., Walker D.A.G. 37
Transients in wave diffraction by cylmders and cylinder arrays
Engsig-Karup A.P., Bingham H.B., Madsen P.A. Hesthaven J.S. 41
An unstructured DG-FEM method for nonlinear wave-stmcture interaction
Evans D.V., Porter R. 45
Wave diffraction by a periodically constrained elastic plate floating on water
Faltinsen O.M., Rognebakke O.F., Timokha A.N. 49
Two-dunensional resonant piston-like sloshing in a moonpool
Farley F.J.M., Rainey R.C.T. 53
Radical design options for wave-profiling wave energy converters
Gazzola T., Korobkin A., Malenica S. 57
Greaves D.
Viscous wave interaction with structures
Grue J., Jensen A.
Experiments on the velocity and acceleration fields in overturning waves in deep water
Hermans A.J.
Free-surface wave interaction with a thick flexible platform
Hu C , Kashiwagi M.
Experimental validation o f the computation method for strongly nonlinear wave-body interactions
lafrati A.
Effect of the wave breaking mechanism on the momentum transfer
Karmakar D., Sahoo T
Expansion formula in wave structure interaction problems - revisited
Kashiwagi M.
Wave drift force on a floatmg body in two-layer fluids
Khabakhpasheva T.I.
Impact of a cylindrical shell on a thin layer of water
Korobkin A.A., lafrati A.
Hydrodynamic loads on flat plate entermg water
Kuznetsov N.
Rapid acceleration of a firee-surface pressure system in forward motion
Ledoux A., Molin B., Delhommeau G., Remy F.
A Lagally formulation of the wave drift force
L i Y., Mei C C .
Subharmonic resonance of a trapped wave near a vertical cylmder m a channel
Longuet-Higgins M.
ROBOW: A wavemaker for use in water of infinite depth
Malenica S., Senjanovic I., Tomasevic S.
An efficient hydroelastic model for wave mduced coupled torsional and horizontal ship vibrations
Mavrakos S.A., Chatjigeorgiou I.K.
Second-order diffraction by two concentiic truncated cylinders
Mclver P., Mclver M
Motion ti-apping sti^ctiires in the tinee-dimensional water-wave problem
Nam B.W., Kim Y . , Kim D.W.
Nonlinear effects o f sloshing flows on ship motion
Motygin O.V.
A new approach to uniqueness for linear problems of wave-body mteraction
Noblesse F., Hendrix D., Karafiath G.
Parau E.I., Vanden-Broeck J.-M., Cooker M J . 137
Three-dimensional waves in a two-fluid system generated by a movmg pressure
Peregrine D.H., Bredmose H., Dunn D . C , Somerville T.A.,
Bullock G.N., Obhrai C , Wolters G. 141
Compressibility of entrained and trapped air in violent water wave impacts
Peter M.A., Meylan M.H., Linton C. M. 145
Scattering of water waves by arrays of arbitrary bodies
Pinkster J.A., Naaijen.P. 149
Passing ship induced long waves in confmed water
Pistani F,, Olivieri A., Campana E.F. 153
Experimental study of the wave generation around a ship bow wave at different scales
Porter R., Porter D. 157
Approxhnations to wave scattering by steep topography
Scolan Y.-M., Remy F.,
T h i b a u l tB. 161
Impact of three-dimensional standing waves on a flat horizontal plate
Seah R.K.M., Yeung R.W. 165
Symmetric resonant modes between twin bodies
TakagiK. 169
Hydroelastic motion and drift force of twm-hull very large mobile offshore structure
Thompson I., Linton C M . 173
Resonant effects in scattering by periodic arrays
TulinM.P 177
The amplification and reflection of long gravity waves (Tsunamis) on the coastal rise, and the flux at the shoreline
Ursell F. 181
Water wave problems, their mathematical solution and physical interpretation
Williams T.D. 185
The scattering by a sea ice/ice shelf transition
Yang C , Noblesse F. 189
The Neumann-Kelvin and Neumann-Michell linear flow models
Zhang H., Schaffer H.A., Bingham H.B. 193
A method for generating highly nonlinear periodic waves in physical wave basms
