Relevant bibliographies by topics / Overtopping flow velocity

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Overtopping flow velocity'

Author: Grafiati
Published: 26 June 2021
Last updated: 29 July 2025

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Journal articles on the topic "Overtopping flow velocity"

1

Suzuki, Tomohiro, Corrado Altomare, Tomohiro Yasuda, and Toon Verwaest. "Characterization of Overtopping Waves on Sea Dikes with Gentle and Shallow Foreshores." Journal of Marine Science and Engineering 8, no. 10 (2020): 752. http://dx.doi.org/10.3390/jmse8100752.

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Due to ongoing climate change, overtopping risk is increasing. In order to have effective countermeasures, it is useful to understand overtopping processes in details. In this study overtopping flow on a dike with gentle and shallow foreshores are investigated using a non-hydrostatic wave-flow model, SWASH (an acronym of Simulating WAves till SHore). The SWASH model in 2DV (i.e., flume like configuration) is first validated using the data of long crested wave cases with second order wave generation in the physical model test conducted. After that it is used to produce overtopping flow in diffe
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Suzuki, Tomohiro, Corrado Altomare, Tomohiro Yasuda, and Toon Verwaest. "Characterization of Overtopping Waves on Sea Dikes with Gentle and Shallow Foreshores." Journal of Marine Science and Engineering 8, no. 10 (2020): 752. https://doi.org/10.3390/jmse8100752.

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Due to ongoing climate change, overtopping risk is increasing. In order to have effective countermeasures, it is useful to understand overtopping processes in details. In this study overtopping flow on a dike with gentle and shallow foreshores are investigated using a non-hydrostatic wave-flow model, SWASH (an acronym of Simulating WAves till SHore). The SWASH model in 2DV (i.e., flume like configuration) is first validated using the data of long crested wave cases with second order wave generation in the physical model test conducted. After that it is used to produce overtopping flow in diffe
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Mares-Nasarre, Patricia, Gloria Argente, M. Esther Gómez-Martín, and Josep R. Medina. "Overtopping layer thickness and overtopping flow velocity on mound breakwaters." Coastal Engineering 154 (December 2019): 103561. http://dx.doi.org/10.1016/j.coastaleng.2019.103561.

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Van der Meer, Jentsje Wouter, Bianca Hardeman, Gosse Jan Steendam, Holger Schuttrumpf, and Henk Verheij. "FLOW DEPTHS AND VELOCITIES AT CREST AND LANDWARD SLOPE OF A DIKE, IN THEORY AND WITH THE WAVE OVERTOPPING SIMULATOR." Coastal Engineering Proceedings 1, no. 32 (2011): 10. http://dx.doi.org/10.9753/icce.v32.structures.10.

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Wave overtopping discharges at coastal structures are well described in the EurOtop Manual (2007), including the distribution of overtopping wave volumes. Each volume that overtops a dike or levee will have a certain flow velocity and depth record in time, often given by the maximum velocity and flow depth. This paper describes some further development of the theory on flow depth and velocities on the crest, but will also show an inconsistency with respect to the mass balance. The second part of the paper gives an analysis of measured values on real dikes, simulated by the Wave Overtopping Sim
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Lee, Woo-Dong, Taegeon Hwang, and Taeyoon Kim. "Inundation Characteristics of Solitary Waves According to Revetment Type." Water 14, no. 23 (2022): 3814. http://dx.doi.org/10.3390/w14233814.

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Wave absorbers installed in front of revetments are effective in reducing wave overtopping and inundation caused by periodic waves. The wave absorbers’ mechanism of reducing wave overtopping and inundation caused by long-period waves such as tsunamis and storm surges is not clearly understood. This study conducted a physical modeling test and numerical analysis based on a large eddy simulation model using in-house code to examine the characteristics of wave overtopping and inundation according to the revetment type for solitary waves. In a vertical revetment (VR), the dominant vertical velocit
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van Bergeijk, Vera M., Jord J. Warmink, and Suzanne J. M. H. Hulscher. "Modelling the Wave Overtopping Flow over the Crest and the Landward Slope of Grass-Covered Flood Defences." Journal of Marine Science and Engineering 8, no. 7 (2020): 489. http://dx.doi.org/10.3390/jmse8070489.

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The wave overtopping flow can exert high hydraulic loads on the grass cover of dikes leading to failure of the cover layer on the crest and the landward slope. Hydraulic variables such as the near bed velocity, pressure, shear stress and normal stress are important to describe the forces that may lead to cover erosion. This paper presents a numerical model in the open source software OpenFOAM® to simulate the overtopping flow on the grass-covered crest and slope of individual overtopping waves for a range of landward slope angles. The model provides insights on how the hydraulic forces change
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Mom, Roy, Gosse Jan Steendam, Rens van der Meijden, Jord Warmink, André van Hoven, and Jentsje van der Meer. "GRASS SOD PULLING TESTS TO DETERMINE THE EROSION RESISTANCE AGAINST WAVE OVERTOPPING OF VARIOUS TYPES OF GRASS COVERS: AN ADJUSTED ANALYSIS METHOD." Coastal Engineering Proceedings, no. 38 (May 29, 2025): 44. https://doi.org/10.9753/icce.v38.papers.44.

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The erosion resistance of a grass cover against wave overtopping is characterized by the critical flow velocity. This velocity can be determined with full-scale tests with the wave overtopping simulator. However, a grass sod pulling test requires less effort and can also give a good estimation of this velocity. Within the project Future Dikes several inconsistencies were found in the analysis method used to estimate the critical flow velocity with a grass sod pulling test. To deal with these inconsistencies an adjusted analysis method was proposed. A comparison of the critical flow velocity fo
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Altomare, Corrado, Xavi Gironella, Tomohiro Suzuki, Giacomo Viccione, and Alessandra Saponieri. "Overtopping Metrics and Coastal Safety: A Case of Study from the Catalan Coast." Journal of Marine Science and Engineering 8, no. 8 (2020): 556. http://dx.doi.org/10.3390/jmse8080556.

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Design criteria for coastal defenses exposed to wave overtopping are usually assessed by mean overtopping discharges and maximum individual overtopping volumes. However, it is often difficult to give clear and precise limits of tolerable overtopping for all kinds of layouts. A few studies analyzed the relationship between wave overtopping flows and hazard levels for people on sea dikes, confirming that one single value of admissible mean discharge or individual overtopping volume is not a sufficient indicator of the hazard, but detailed characterization of flow velocities and depths is require
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9

Adibhusana, Made Narayana, Jong-In Lee, Young-Taek Kim, and Yonguk Ryu. "Study of Overtopping Flow Velocity and Overtopping Layer Thickness on Composite Breakwater under Regular Wave." Journal of Marine Science and Engineering 11, no. 4 (2023): 823. http://dx.doi.org/10.3390/jmse11040823.

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Overtopping flow velocity (OFV) and overtopping layer thickness (OTL) are essential parameters in breakwater design. Several empirical equations to predict these parameters are available in many works of literature, but most of the equations were derived based on impermeable structures such as sea dikes. In this study, we experimented with overtopping waves over a composite breakwater with tetrapod armor units. In the experiments, wave overtopping was generated from regular waves. We used a digital image-based velocimetry method, bubble image velocimetry (BIV), to measure the OFV and digitize
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Llana, Alberto, Rafael Molina, Alberto Camarero, Alvaro Campos, Ana Francisca Alises, and José Damián López. "OVERTOPPING FLOW PROPERTIES CHARACTERIZATION IN LABORATORY AND PROTOTYPE THROUGH THE COMBINATION OF NON INTRUSIVE INSTRUMENTAL TECHNIQUES." Coastal Engineering Proceedings 1, no. 33 (2012): 46. http://dx.doi.org/10.9753/icce.v33.currents.46.

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Overtopping events may cause different failure modes depending on overtopped flow characteristics. Most of the studies about overtopping hazard analysis link the damages caused by the overtopping event to its mean overtopping discharge (q), which provides no information about overtopped flow characteristics or its spatial distribution. In this paper it is presented a non intrusive measurement system based on video imagery techniques and optical level sensors (OLS), which aim is to obtain overtopped highly aerated flows´ principal characteristics: velocity, volume, and density, in order to deep
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Dissertations / Theses on the topic "Overtopping flow velocity"

1

Mares, Nasarre Patricia. "Overtopping flow on mound breakwaters under depth-limited breaking wave conditions." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/163154.

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[ES] El cambio climático y la conciencia social sobre el impacto de las infraestructuras en el medio está llevando a la necesidad de diseñar diques en talud con cotas de coronación reducidas frente a eventos de rebase más extremos. Además, la mayoría de estos diques se construyen en zonas de profundidades reducidas, donde el oleaje rompe a causa de la limitación por fondo. Estudios recientes apuntan a la necesidad de considerar no sólo la caudal medio de rebase (q) sino también el máximo volumen individual de rebase (Vmax), el espesor de lámina de agua (OLT) y la velocidad del flujo de rebase
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Conference papers on the topic "Overtopping flow velocity"

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Hu, Tengyan, Haojie Ren, Jiawei Shen, Zhibo Niu, Mengmeng Zhang, and Yuwang Xu. "Experimental Investigation on Hydrodynamic Forces of Semi-Submerged Cylinder in Combined Steady and Oscillatory Flow." In ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/omae2022-79804.

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Abstract The hydrodynamic forces on the semi-submerged cylinder under the combination of steady and oscillatory flow are experimentally investigated. The semi-submerged cylinder is forced to move with different periods and amplitudes as towing in the still water to simulate the equivalent combined flow. Compared with the steady flow and oscillatory flow, the feasibility of Morison equation, the hydrodynamic coefficients including drag and added mass coefficients are respectively studied. The results show that the hydrodynamic forces on semi-submerged cylinder in these three types of flows unde
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Streicher, Maximilian, Andreas Kortenhaus, Corrado Altomare, et al. "Non-Repeatability, Scale- and Model Effects in Laboratory Measurement of Impact Loads Induced by an Overtopped Bore on a Dike Mounted Wall." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96703.

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Abstract Overtopping bore impact forces on a dike mounted vertical wall were measured in similar large-scale (Froude length scale factor 1-to-4.3) and small-scale (Froude length scale factor 1-to-25) models. The differences due to scale effects were studied, by comparing the up-scaled force measurements from both models in prototype. It was noted that if a minimum layer thickness, velocity of the overtopping flow and water depth at the dike toe were maintained in the small-scale model, the resulting differences in impact force due to scale effects are within the range of differences due to non
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3

Wu, Yun-Ta, and Kuang-An Chang. "Experimental Study of Breaking Wave Impinging and Overtopping a Deck Structure." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54837.

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This paper presents an experimental work on a breaking wave impinging and overtopping a deck structure. Because the Particle Image Velocimetry (PIV) technique is known of unsuitable of applying in highly aerated flows such as breaking waves, a technology named Bubble Image Velocimetry (BIV) is adopted to quantify the turbulent velocity characteristics in the bubbly region. A high-speed camera is used to capture images during the wave-structure interaction event in the framework of BIV methodology and the images are subsequently processed using cross-correlation for velocity determination. A wa
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Chuang, Wei-Liang, Kuang-An Chang, and Richard Mercier. "Green Water Flow on a Fixed Model Structure in a Large Wave Basin Under Random Waves." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77184.

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Green water generated by random waves on a fixed, simplified geometry model structure was measured in a large wave basin. The velocity field of the flow that is aerated and highly turbulent was quantified using the bubble image velocimetry (BIV) technique. BIV utilizes shadow textures created by air-water interfaces as tracers in backlit images recorded by a high speed camera. The tracers in consecutive images are then cross-correlated to obtain the corresponding two-dimensional velocities. Random waves were generated by the JONSWAP spectrum with a significant wave height close to the freeboar
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Sterenborg, Joost, Mark Paalvast, Willem van Schoten, Lourens Boot, and Arjen Tjallema. "Model Tests to Assess Wave and Current Loads on Ocean Cleanup’s Conceptual Plastic Capturing Barrier." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-61702.

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Lot of plastics enters the ocean every day with negative effects on the environment, economy and health. A large portion of the floating plastics accumulate in so-called gyres, where currents converge. One of the aims of the Ocean Cleanup is to develop technologies to extract plastic pollution from the oceans. The idea is to install a flexible barrier in the ocean that is supposed to concentrate the plastic at the Great Pacific Garbage Patch. The design of the barrier is still in the conceptual phase and the model tests described in this report are conducted to assist in the development of the
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