Journal ArticleDOI
Hybrid wave model for unidirectional irregular waves—part II. Comparison with laboratory measurements
TLDR
In this article, the authors compared numerical predictions of irregular wave elevations and velocities based on the hybrid wave model with two sets of laboratory measurements and compared with the related predictions by linear random wave theory and its "stretching" and "extrapolation" modifications.About:
This article is published in Applied Ocean Research.The article was published on 1996-04-01. It has received 37 citations till now. The article focuses on the topics: Wave model & Extrapolation.read more
Citations
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Kinematics of extreme waves in deep water
TL;DR: In this article, the velocity profiles under crest of a total of 62 different steep wave events in deep water are measured in laboratory using particle image velocimetry, and the experimental velocities have been put on a nondimensional form in the following way: from the wave record (at a fixed point) the (local) trough-to-trough period, TTT and the maximal elevation above mean water level, hm of an individual steep wave event are identified.
Journal ArticleDOI
Hybrid wave model for unidirectional irregular waves—part I. Theory and numerical scheme
TL;DR: In this paper, a hybrid wave model for the prediction of the kinematics and wave evolution of unidirectional irregular wave trains is presented, which considers the effects of the interaction between the wave components of an irregular wave train up to the second order of wave steepness.
Journal ArticleDOI
Deterministic wave model for short-crested ocean waves: Part I. Theory and numerical scheme
TL;DR: In this paper, a directional hybrid wave model (DHWM) is developed for deterministic prediction of short-crested irregular ocean waves, where the wave properties are predicted in the vicinity of the measurements based on the decomposed free-wave components.
Journal ArticleDOI
Deterministic non-linear wave prediction using probe data
TL;DR: In this article, two data assimilation processes are developed to improve the wave-field estimates obtained from the study of one or several probe signals, so that we obtain proper initial conditions for the forecast.
Journal ArticleDOI
A numerical and experimental study on the nonlinear evolution of long-crested irregular waves
Arnaud Goullet,Wooyoung Choi +1 more
TL;DR: In this paper, the spatial evolution of nonlinear long-crested irregular waves characterized by the JONSWAP spectrum is studied numerically using a nonlinear wave model based on a pseudospectral (PS) method and the modified nonlinear Schrodinger (MNLS) equation.
References
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Digital Particle Image Velocimetry
Christian Willert,Morteza Gharib +1 more
TL;DR: In this article, the directional ambiguity associated with PIV and LSV is resolved by implementing local spatial cross-correlations between two sequential single-exposed particle images, and the recovered velocity data are used to compute the spatial and temporal vorticity distribution and the circulation of the vortex ring.
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On the non-linear energy transfer in a gravity-wave spectrum Part 1. General theory
TL;DR: In this article, the energy flux in a finite-depth gravity-wave spectrum resulting from weak non-linear couplings between the spectral components is evaluated by means of a perturbation method.
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On the dynamics of unsteady gravity waves of finite amplitude Part 1. The elementary interactions
TL;DR: In this article, the authors considered the non-linear interactions between pairs of intersecting gravity wave trains of arbitrary wavelength and direction on the surface of water whose depth is large compared with any of the wavelengths involved.
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A parametric wave prediction model
TL;DR: In this paper, the shape invariance of the spectral shape is exploited in a wave prediction model by projecting the full transport equation for the two-dimensional spectral continuum onto two variables characterizing the energy and frequency scales of the spectrum.
Method for Calculating Forces Produced by Irregular Waves
TL;DR: In this article, a new method is described and evaluated for calculating wave forces on offshore structures based on an extension of Airy theory for two-dimensional waves and uses a linear filtering technique to calculate wave forces as a function of time for wave profiles of arbitrary shape and length.