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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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Journal ArticleDOI
TL;DR: In this article, the authors describe tests carried out in the large wave flume of the Maritime Engineering Laboratory at Catalonia University of Technology, to investigate the SZ under the storm conditions.
Abstract: The modelling of swash zone (SZ) sediment transport and the resulting morphodynamics have been areas of active research over the last decade. However, many details are still to be understood, whose knowledge will be greatly advanced by the collection of high-quality data under the controlled large-scale laboratory conditions. The research describes tests carried out in the large wave flume of the Maritime Engineering Laboratory at Catalonia University of Technology, to investigate the SZ under the storm conditions. Its main aim was to compare beach-profile responses for monochromatic waves, monochromatic waves plus free long waves, bi-chromatic waves and random waves. Both erosive and accretive conditions were considered. Results discussed here were derived from the analysis of only a part of the whole data set.

10 citations

Journal ArticleDOI
TL;DR: In this paper, the authors investigate phreatic surface motion in rubble-mound breakwater models and assess it as a function of a number of governing variables, including armor unit type, geometry of the armor layer, breakwater slope, and core permeability.
Abstract: Experimental studies were undertaken to investigate phreatic surface motion in rubble-mound breakwater models This motion was assessed as a function of a number of governing variables, including armor unit type, geometry of the armor layer, breakwater slope, and core permeability Tests were conducted in a two-dimensional wave flume using regular waves Both the maximum and average phreatic surface elevations were found to increase with increasing wave height, increasing wave period, and steeper slopes The setup within the core was also significantly higher for tests with spheres in the armor layer, due to the increased permeability normal to the slope Increasing core permeability resulted in sharp rises in the maximum and average phreatic surface elevations

10 citations

Journal ArticleDOI
TL;DR: In this article, a 2D fully nonlinear numerical wave flume (NWF) is developed by use of a time-domain higher-order boundary element method (HOBEM) based on potential flow theory.
Abstract: To investigate higher harmonics induced by a submerged obstacle in the presence of uniform current, a 2D fully nonlinear numerical wave flume (NWF) is developed by use of a time-domain higher-order boundary element method (HOBEM) based on potential flow theory. A four-point method is developed to decompose higher bound and free harmonic waves propagating upstream and downstream around the obstacle. The model predictions are in good agreement with the experimental data for free harmonics induced by a submerged horizontal cylinder in the absence of currents. This serves as a benchmark to reveal the current effects on higher harmonic waves. The peak value of non-dimensional second free harmonic amplitude is shifted upstream for the opposing current relative to that for zero current with the variation of current-free incident wave amplitude, and it is vice versa for the following current. The second-order analysis shows a resonant behavior which is related to the ratio of the cylinder diameter to the second bound mode wavelength over the cylinder. The second-order resonant position slightly downshifted for the opposing current and upshifted for the following current.

10 citations

Posted Content
TL;DR: In this article, the authors investigated attenuation and dispersion of surface waves in a variety of ice covers using a refrigerated wave flume, and found that attenuation rates were a function of ice thickness, wave frequency, and the general rigidity of the ice cover.
Abstract: Experiments investigating the attenuation and dispersion of surface waves in a variety of ice covers are performed using a refrigerated wave flume. The ice conditions tested in the experiments cover naturally occurring combinations of continuous, fragmented, pancake and grease ice. Attenuation rates are shown to be a function of ice thickness, wave frequency, and the general rigidity of the ice cover. Dispersion changes were minor except for large wavelength increases when continuous covers were tested. Results are verified and compared with existing literature to show the extended range of investigation in terms of incident wave frequency and ice conditions.

10 citations

Journal ArticleDOI
TL;DR: Munoz-Perez et al. as mentioned in this paper performed an analysis of the factors influencing this phenomenon using the Coastal Modeling System, a numerical model based on the mild slope equation (waves, currents, and sediment transport), and performed comparing aerial photographs to the monitoring campaigns carried out in 2005 and 2006 (topographic surveys, current meters, tidal gauges, and water quality parameters).
Abstract: MUNOZ-PEREZ, J.J.; CABALLERO, I.; TEJEDOR, B., and GOMEZ-PINA, G., 2010. Reversal in longshore sediment transport without variations in wave power direction. Journal of Coastal Research, 26(4), 780-786. West Palm Beach (Florida), ISSN 0749-0208. The mouth of the Guadiaro River (SW Spain), oriented in a NE-SW direction, is often closed, resulting in environmental, social, and economic problems. An analysis of the factors influencing this phenomenon was performed using the Coastal Modeling System, a numerical model based on the mild slope equation (waves, currents, and sediment transport), and a coastal evolution study was performed comparing aerial photographs to the monitoring campaigns carried out in 2005 and 2006 (topographic surveys, current meters, tidal gauges, and water quality parameters). Global transport at the Spanish south Mediterranean coast occurs in a southwestern direction. However, the spit that closes the Guadiaro River grows in the opposite direction. The points and conditions where transport direction changes occur along the coastline were identified. The results, obtained from 200 different propagations, were consistent with field data, showing that northeastern littoral transport during easterly waves was sufficient to block the river mouth. Furthermore, significant differences in sediment transport patterns were found despite the existence of a fixed wave power direction. Through this research we also learned that use of wave propagation numerical models by nonexperts is prone to error, as small variations in input parameters can induce dramatically different results that may be contradictory in certain bathymetric configurations.

10 citations


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