Open AccessJournal Article
On Frequency-Focusing Unidirectional Waves
Reads0
Chats0
TLDR
In this article, the phase convergence to within lOin mechanically generated waves was achieved at a specified point in a wave flume by frequency focusing, where the crest elevation reached a maximum somewhat further from the waveboard, where also breaking occurs if the waves are of sufficient size.Abstract:
Phase convergence to within lOin mechanically generated waves was achieved at a specified point in a wave flume by frequency focusing. Owing to the presence of nonlinear waves, the crest elevation reaches a maximum somewhat further from the waveboard, where also breaking occurs if the waves are of sufficient size. The critical amplitude for breaking was not in close agreement with previous measurements when normalized with respect to the central wave number of mechanically generated waves. It is suggested however that the limiting conditions are related to the phase speed near the focus point, where the wave group propagates with a considerable degree of coherence not present in a linear model. Predictions of a time-dependent nonlinear numerical model of Baldock and Swan (1994) are found to be in good agreement with the behavior of the crest in this region.read more
Citations
More filters
Journal ArticleDOI
Breaking Waves in Deep and Intermediate Waters
TL;DR: In this article, the authors focused on the prediction of the geometry, onset, and energy dissipation of surface water waves and their subsequent breaking in deep and intermediate water depths using geometric properties.
Journal ArticleDOI
Numerical modeling of extreme rogue waves generated by directional energy focusing
TL;DR: In this paper, a 3D numerical wave tank (NWT) is used to simulate 3D focused overturning waves and analyze their geometry and kinematics, and a typical simulation of an overturning rogue wave is presented.
Journal ArticleDOI
Ringing of a vertical cylinder in waves
TL;DR: In this paper, the authors analyzed the response of a single vertical cylinder in the inertia regime in steep non-breaking waves and found that the loading on a cylinder when it was held stationary, and its response in the same waves when pivoted just above the floor of the wave flume, and supported at the top by springs in the horizontal plane.
Journal ArticleDOI
Breaking criteria and energy losses for three‐dimensional wave breaking
Chin H. Wu,Heidi Nepf +1 more
TL;DR: In this paper, the authors explore the influence of spatial focusing and diffraction on the evolution of unsteady, three-dimensional, deep water wave packets with a constant-steepness spectrum.
Journal ArticleDOI
Evaluation of a deep-water wave breaking criterion
TL;DR: In this paper, the authors investigate the breaking criterion of Song and Banner [J. Phys. Oceanogr. 32, 2541] who suggested a threshold range of (1.4±0.1)×10−3 for a predictive wave breaking parameter, measuring the rate of change in the local energy maximum and the local wave number, to differentiate between wave trains that lead to breaking and those that do not.