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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.


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TL;DR: In this article, a wave flume based on the non-periodic high-order spectral method was used to predict the generation and propagation of nonlinear waves of different Ursell number.
Abstract: Generation and propagation of nonlinear water waves along a wave flume is studied numerically and experimentally.A numerical flume is developed based on the non-periodic high-order spectral method by using an additional potential technique. The flume is applied to predict the generation and the propagation of nonlinear waves of different Ursell number.The calculations are compared with the linear wave solution and the analysis solution. The results show that for waves of small Ursell number, the generation and the propagation of water waves can be predicted by linear solutions; with the increasing Ursell number, the generated waves are shown to be in good agreement with the analysis solution.Laboratory experiments are conducted in a wave flume to verify the nonlinear numerical wave flume.The comparisons show a reasonable agreement between numerical and measured free surface elevation and the corresponding amplitudes of Fourier series.

3 citations

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the effect of nearby buildings, termed macroroughness on the tsunami loading, and found that the presence of these buildings had a significant impact on tsunami loading in the inundation zone.
Abstract: This study experimentally investigated the effect of nearby buildings, termed macroroughness on the tsunami loading. The hydraulic experiment was conducted in a 1 m x 1 m with 40 m long wave flume at a scale of 1:100. Nominal wave height of 40 mm was simulated in this study. Both the building model and the macroroughness elements consisted of 66 mm high solid blocks. Wave pressures exerted on frontal and back faces of the building model were discussed in detail in this paper. Experimental results showed that the macroroughness elements had a significant impact on tsunami loading in the inundation zone. Sheltering effect was exhibited by the seaward macroroughness elements, showing significant reduction in the front face pressures. With the presence of the landward macroroughness elements, the wave pressures at the back face of the building model increased significantly at the initial impact.

3 citations

Journal ArticleDOI
TL;DR: In this article , a quasi-standing interfacial wave comprised of four interfacial waves was observed at the interface as a result of a resonant wave interaction with the surface wave.
Abstract: Motivated by environmental impacts of surface-wave induced mixing of fluid mud with clear water in nearshore areas, this paper presents quantitative measurements of excitation of interfacial waves over a bed mud layer by a surface wave in a wave flume. After an initial fluidization process, a quasi-standing interfacial wave comprised of four interfacial waves was observed at the interface as a result of a resonant wave interaction with the surface wave. The interfacial waves were subharmonic to the surface wave and traveled at the maximum possible angle from it. The growth rate and kinematic properties of the interfacial waves were measured, and good agreement with theoretical predictions of a two-layer interaction model was obtained. It was found that excitation of these waves was highly dependent on the surface wave height and fluid mud viscosity. Furthermore, thickening of the lutocline layer as a result of resuspension of fluid mud highly influenced the wavelengths as well as the damping rate of the interfacial waves.

3 citations

Journal ArticleDOI
Zhou Shule1, Wei Fan1, Zhongzhi Yao1, Qiang Yongfa1, Yiwen Pan1, Ying Chen1 
TL;DR: In this paper, a theoretical model and experimental data for the wave pump under irregular waves of various spectra were presented, and the results showed that the upwelling flow rate strongly depends on significant wave heights, significant wave periods and density differences between DOW and the surface water.

3 citations

Journal ArticleDOI
TL;DR: In this article, the circulation of the vortices is estimated with potential flow theory, applying Kutta's condition at the crest of ripples, which indicates that the circulation has a functional relationship with period of fluid oscillation, boundary layer thickness and fluid velocity at the edge of the boundary layer.
Abstract: The present paper deals with vortex shedding from ripples and the associated wave energy dissipation. The circulation of the vortices is estimated with potential flow theory, applying Kutta's condition at the crest of ripples, which indicates that the circulation has a functional relationship with period of fluid oscillation, boundary layer thickness and fluid velocity at the edge of the boundary layer. The kinetic energy of the vortices is assumed to be dissipated to reduce the wave energy. A formula is derived under the assumption, and it is tested with wave flume experiment for which self-formed ripples are generated. A good correlation is found between the theory and the experimental result.

3 citations


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