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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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01 Jan 2003
TL;DR: In this article, the absorbed numerical wave flume developed based on the volume of fluid (VOF) method was investigated for the nonlinear interaction between surface waves and a submerged horizontal plate, where the governing equations were the continuity equation and the Reynolds-Averaged Navier-Stokes (RANS) equations with the k-epsilon turbulence equations.
Abstract: Nonlinear interaction between surface waves and a submerged horizontal plate is investigated in the absorbed numerical wave flume developed based on the volume of fluid (VOF) method. The governing equations of the numerical model are the continuity equation and the Reynolds-Averaged Navier-Stokes (RANS) equations with the k-epsilon turbulence equations. Incident waves are generated by an absorbing wave-maker that eliminates the waves reflected from structures. Results are obtained for a range of parameters, with consideration of the condition under which the reflection coefficient becomes maximal and the transmission coefficient minimal. Wave breaking over the plate, vortex shedding downwave, and pulsating flow below the plate are observed. Time-averaged hydrodynamic force reveals a negative drift force. All these characteristics provide a reference for construction of submerged plate breakwaters.

9 citations

DOI
29 Jan 1988
TL;DR: In this paper, the authors present Eulerian velocity and water surface measurements soon after the onset of wave motion from 12 locations in a large scale flume and show that the measured return flows are a function of time and depth.
Abstract: Stokes (1847) showed that finite amplitude progressing waves cause a net drift of fluid, in the direction of wave motion, which occurs in the upper portion of the water column. In a closed wave flume this drift must be accompanied by a return flow toward the wave generator to satisfy the conservation of mass. This study presents Eulerian velocity and water surface measurements soon after the onset of wave motion from 12 locations in a large scale flume. Waves with .67 < kh < 2.29 and .09 < H/h < .39 were produced in a water depth of 3.5 meters. Superimposing the return flow theory of Kim (1984) with seventh order stream function theory is shown to improve the velocity predictions. The measured return flows are a function of time and depth and agree with Kim's theory as a first approximation. The mean water surface set-down agrees with the theory of Brevik (1979) except for the nearly deep water waves.

9 citations

Journal ArticleDOI
TL;DR: In this article, the wave-induced dynamic response and instability of silty clay seabeds around a semi-circular breakwater were conducted in a large wave flume.

9 citations

01 Jan 2007
TL;DR: In this article, a new wave bottom shear plate was successfully developed to measure instantaneous wave bottom stress in a laboratory wave flume and the measured total horizontal force was found linearly proportional to wave height in both laminar and turbulent flows.
Abstract: Wave-induced bottom shear stress is one of the most important parameters in modelling of wave hydrodynamics and coastal sediment transport. A new type of shear plate has been successfully developed to measure instantaneous wave bottom shear stress in a laboratory wave flume. The shear plate measures instantaneous horizontal force by applying the Wheatstone half bridge circuit to detect a tiny horizontal movement of the shear plate. There are about 280 individual test runs carried out over one smooth bed and two roughened beds, respectively. In each test run, instantaneous bottom shear stress was measured at a sampling rate of 10 Hz for about 10 minutes. The measured total horizontal force, which consists of wave-induced bottom shear stress and hydrodynamic pressure, is found linearly proportional to wave height in both laminar and turbulent flows. The wave friction factors measured on the smooth bed are shown to agree excellently with the theoretical values derived in laminar boundary layer flow, but those on the rough beds are affected by the bed roughness length estimated. An empirical formula is also proposed to compute the wave bottom shear stress.

9 citations

DOI
20 May 1991
TL;DR: In this paper, a quasi-three-dimensional numerical model for detailed sediment transport calculations on a beach is developed for a micro-computer, which includes a complete description of the wave climate and wave induced currents over the study area.
Abstract: A quasi three-dimensional numerical model for detailed sediment transport calculations on a beach is developed for a micro-computer. It includes a complete description of the wave climate and wave induced currents over the study area. Vertical concentration profiles of suspended sediments, calculated locally to include the effects of shear stress on the bottom and the intensity of turbulence due to breaking waves, are superposed on local velocity profiles to yield sediment transport rates. Sediment transport is calibrated with laboratory experiments performed on a straight sand beach.

9 citations


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