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Wave flume

About: Wave flume is a research topic. Over the lifetime, 1627 publications have been published within this topic receiving 23335 citations.


Papers
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Journal ArticleDOI
TL;DR: In this article , a U-OWC type marine energy conversion device with particular reference to the calculation of the resonance index and hydrodynamic efficiency was presented using physical and numerical modeling.

1 citations

Dissertation
01 Jan 2009
TL;DR: In this paper, the authors studied the properties of high-frequency internal solitary waves propagating in a shallow water environment using both field observations and numerical simulations and found that the formation of the trapped cores inside waves of elevation is demonstrated using nonhydrostatic numerical simulations.
Abstract: Internal solitary waves are encountered throughout the ocean and are a key part of coastal water dynamics. With the theoretical basis developed for infinitesimally small weakly-nonlinear waves several decades ago and a fully nonlinear theory still under development, internal waves remain on the front edge of ocean science. -- In the present study, properties of high-frequency internal solitary waves propagating in a shallow water environment are studied using both field observations and numerical simulations. An array of bottom moorings and shipboard instruments are used to track internal wave packets propagating towards the flank of the Ile-aux-Lievres Island (St. Lawrence Estuary). The transformation leading to dissipation of a wave of depression into a number of waves of elevation is documented. The observed spatio-temporal wave characteristics are compared to the first-order Korteveg-de Vries theory and a fully nonlinear two-layer theory. -- High resolution two-dimensional nonhydrostatic numerical simulations are performed to supplement the field observations. The focus is on the properties of internal waves of elevation (often referred to as boluses) resulting from the shoaling of the wave of depression onto a linear slope. A hypothesis that boluses play a significant role in mass transport is tested. -- This work contributes to better understanding of the mechanisms of internal wave shoaling over linear slopes. The formation of the trapped cores inside waves of elevation is demonstrated using nonhydrostatic numerical simulations. To our knowledge this is a novel result which helps to explain field and laboratory observations of trapped cores. The detailed study of the transport properties of waves of elevation is also done. A simple parametrization of the mass transport caused by waves of elevation is proposed.

1 citations

Journal ArticleDOI
TL;DR: In this paper, a combination of experimental and numerical simulation of tsunami represented by the solitary wave was studied and their comparison is discussed and their details of the numerical approach, methodology, instrumentation and measurement adopted for the present study are reported.
Abstract: The devastating effects of the great Indian ocean tsunami has forced researchers in focusing their attention more vigorously on understanding the behaviour during its propagation and its effects on structures. This can obviously be accomplished through numerical and physical model studies or combination of both. The characteristics of a tsunami wave can approximately be same as that of a solitary wave which is basically a shallow water wave. Hence, the studies on the characteristics of shallow water waves have become an emerging topic of interest. An important aspect of a mitigation effort is to predict the tsunami wave kinematics. A combination of experimental and numerical simulation of tsunami represented by the solitary wave was studied and their comparison is discussed in this paper. The details of the numerical approach, methodology, instrumentation and measurement adopted for the present study are reported. The disagreement of the experimental simulation of solitary wave elevations with th...

1 citations

Journal Article
TL;DR: In this paper, the long non-linear waves in shallow water propagation were studied experimentally and numerically, and the Fourier analysis of measured and computed time history of water elevations with second order incident boundary condition showed that there is periodic transformation for different component of waves along wave flume.
Abstract: The long non-linear waves in shallow water propagation is studied experimentally and numerically. First order and second order incident boundary condition on fixed incident boundary are derived for numerical simulations, based on the cnoidal motion of wave maker paddle, which shows that the prediction with second order incident boundary condition is more accurate than the prediction with first order incident boundary condition. The Fourier analysis of measured and computed time history of water elevations with second order incident boundary condition shows that there is periodic transformation for different component of waves along wave flume, while no periodic transformation with first order incident boundary condition.

1 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202331
202284
202165
202069
201964
201859