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Keywords: gravity wave
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Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-423
... ABSTRACT In this paper, propagation of trapped waves traveling along a submerged step is investigated numerically. Within the framework of the exact model of surface gravity waves, a numerical model based on a conformal mapping method is developed to simulate nonlinear wave propagation...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-139
... ABSTRACT Water surface and bottom boundary layer measurements and analyses are presented. These form a protocol to characterize wind driven surface gravity waves in shallow water near shorelines or in shallow open coastal waters and fluid mud movement in a bottom moving lutocline. Synthetic...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-534
... to predictions from existing theories. INTRODUCTION Wave-ice interaction is a two-way process. Ice scatters ocean waves and redistributes wave energy, in turn gravity waves stress and potentially fracture ice. In this paper, we focus on the phenomenon of ice-induced wave attenuation (Wadhams et al, 1988...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-349
...) The wave induced velocity is determined according to the potential theory of surface gravity waves of small amplitudes 0 z w x v , C.C.)sinh( cosh[ 0 ie kHk Hzki , C.C.0 ie , (4) where is the velocity potential, is the water surface elevation, z is the vertical coordinate, 02 is the wave...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-091
...Second-order Lagrangian interactions of tri-dimensional gravity waves. Fr´ed´eric Nouguier1, Bertrand Chapron2, Charles-Antoine Gu´erin1 (1Mediterranean Institute of Oceanography (MIOUniversite´ de ToulonLa Garde, France (2Laboratoire d Oc´eanographie Spatiale, Ifremer, Plouzan´e, France ABSTRACT...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-675
... the local wind conditions. Both atmospheric gravity waves and other sources of turbulence can have a strong impact on production, and can cause fatigue loading which can severely impact the lifespan of a turbine (Churchfield et al., 2012; Brand et al., 2011). However, turbulence is also a key to reducing...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-418
... Abstract The asymptotic expansion of the transient capillary-viscosity green function at large distance r and large time t is considered in this paper. Difficulties arise when r/t approaches the minimum speed of capillary-gravity waves v 0 . A cubic transform of the variable of integration...
Proceedings Papers

Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-391
... homogenization theory and Hamiltonian perturbation theory for partial differential equations, together with an expansion of the Dirichlet-Neumann operator, we derive new Hamiltonian envelope models for surface gravity waves on finite and infinite depth. In particular, we derive a Hamiltonian version of Dysthe's...
Proceedings Papers

Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-413
... theory in Lagrangian coordinates was obtained by Gerstner (1802) who assumed the flow possesses finite vorticity. equation lagrangian solution gravity wave experiment propagation water wave mni lagrangian experiment boundary condition artificial intelligence chen wave propagation...
Proceedings Papers

Paper presented at the The Seventeenth International Offshore and Polar Engineering Conference, July 1–6, 2007
Paper Number: ISOPE-I-07-036
... that the structural dimension of the breakwater be large, which in turn makes the construction cost high. free surface energy density displacement transmission coefficient wave barrier gravity wave energy flux wave number reflection interaction relation topography engineering membrane upstream...
Proceedings Papers

Paper presented at the The Seventeenth International Offshore and Polar Engineering Conference, July 1–6, 2007
Paper Number: ISOPE-I-07-484
... or antiparallel wavetrains is investigated from the temporal surface elevations simulated using Zahkarov s equation for various water depths. KEY WORDS: Tertiary wave interaction; steep gravity waves; Zakharov s integral equation; resonant interaction; phase velocity. INTRODUCTION Longuet-Higgins and Phillips...
Proceedings Papers

Paper presented at the The Seventeenth International Offshore and Polar Engineering Conference, July 1–6, 2007
Paper Number: ISOPE-I-07-248
... By utilizing a Rayleigh friction formulation to model the dissipative processes in the ocean, a Lagrangian analysis for the mean drift due to surface gravity waves is performed. The waves have amplitudes that vary slowly in time and space, and can be forced by a prescribed wind-stress...
Proceedings Papers

Paper presented at the The Sixteenth International Offshore and Polar Engineering Conference, May 28–June 2, 2006
Paper Number: ISOPE-I-06-203
... learning gravity wave wave prediction fft university spectrum representation amplitude prediction communication time series wave record frequency harmonically artificial intelligence sinusoid spectra sensor ifft renewable energy ocean energy experiment Paper No. 2006-JSC-344...
Proceedings Papers

Paper presented at the The Tenth International Offshore and Polar Engineering Conference, May 28–June 2, 2000
Paper Number: ISOPE-I-00-222
... ABSTRACT A new expression is introduced as a simple approximation for the rate of change of the spectral energy density of surface gravity waves due to nonlinear wave-wave interaction. The proposed expression has the form of a second-order nonlinear diffusion operator, and conserves wave...
Proceedings Papers

Paper presented at the The Tenth International Offshore and Polar Engineering Conference, May 28–June 2, 2000
Paper Number: ISOPE-I-00-278
... Abstract A time-domain numerical model is developed to investigate the response characteristics of a floating fluid-filled membrane in gravity waves. The model consists of three components simulating respectively the membrane response and the motions of the fluids inside and outside...
Proceedings Papers

Paper presented at the The Tenth International Offshore and Polar Engineering Conference, May 28–June 2, 2000
Paper Number: ISOPE-I-00-299
...) the body is very thin compared to wave parameters, and progressive wave upstream oil & gas edge condition reflection edge plate inner product expansion method wave energy gravity wave reservoir characterization free edge interaction variation deflection semi-infinite elastic plate...
Proceedings Papers

Paper presented at the The Eighth International Offshore and Polar Engineering Conference, May 24–29, 1998
Paper Number: ISOPE-I-98-244
... such as effective viscosity and density is assigned. lagrangian framework gravity wave free surface particle pseudo-concentration method wave motion time history equation pipeline finite element model boundary condition numerical simulation boundary wave tank simulation time step vertical...
Proceedings Papers

Paper presented at the The Seventh International Offshore and Polar Engineering Conference, May 25–30, 1997
Paper Number: ISOPE-I-97-346
... ABSTRACT The present paper describes a numerical model for the interaction between a bottom-mounted fluid-filled membrane and surface gravity waves. The longitudinal dimension of the membrane is much larger than its sectional dimensions thus effectively yielding a two-dimensional problem...
Proceedings Papers

Paper presented at the The Seventh International Offshore and Polar Engineering Conference, May 25–30, 1997
Paper Number: ISOPE-I-97-282
... ABSTRACT There are essentially two types of three-dimensional instabilities of nonlinear surface gravity waves (Types I and II). Their relative importance depend on their wave steepness as well as on the water depth on which waves travel. In shallow water, Type II instability is one-order...
Proceedings Papers

Paper presented at the The Seventh International Offshore and Polar Engineering Conference, May 25–30, 1997
Paper Number: ISOPE-I-97-270
..., it is used to investigate the effect of head-on collision of short nonlinear gravity waves in water of finite depth. They are short in that their wavelength is not long compared to the water depth; the latter is then finite but not shallow. frequency fluid mech wave amplitude gravity wave...

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