Searched for: subject%3A%22Shallow%255C+foreshore%22
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Nguyên, Hà (author)
A sea-dike system is of importance for the protection of the hinterland. However, the effect of very gentle and shallow sloping foreshores (in the order up to 1 in 1000) on wave overtopping processes has not yet been quantified enough and, thus, so far is not well understood. This dissertation seeks an answer to the question of whether the...
doctoral thesis 2022
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Lashley, Christopher H. (author)
Coastal communities across the globe are often protected by structures, such as seawalls, levees or dikes, which allow only a safe volume of water to pass over or “overtop” them due to wave action during storms. The area seaward of these structures is often characterised by shallow, gently sloping beds referred to as foreshores.<br/>As storm...
doctoral thesis 2021
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Lashley, Christopher H. (author), Van Der Meer, Jentsje (author), Bricker, J.D. (author), Altomare, Corrado (author), Suzuki, T. (author), Hirayama, Katsuya (author)
The state-of-The-Art formulas for mean wave overtopping (q) assessment typically require wave conditions at the toe of the structure as input. However, for structures built either on land or in very shallow water, obtaining accurate estimates of wave height and period at the structure toe often proves difficult and requires the use of either...
journal article 2021
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Nguyên, Hà (author), Hofland, Bas (author), Chinh, Vu Dan (author), Stive, M.J.F. (author)
The spectral wave period T<sub>m-1,0</sub> at the toe of sea-dikes is a crucial parameter to predict wave overtopping discharge over sea-dikes. It is known from literature that this period quickly increases when waves reach shallow foreshores; however, sometimes the assumption is made that the wave period remains constant from offshore to...
journal article 2020
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Gruwez, Vincent (author), Altomare, Corrado (author), Suzuki, T. (author), Streicher, Maximilian (author), Cappietti, Lorenzo (author), Kortenhaus, Andreas (author), Troch, Peter (author)
Three open source wave models are applied in 2DV to reproduce a large-scale wave flume experiment of bichromatic wave transformations over a steep-sloped dike with a mildly-sloped and very shallow foreshore: (i) the Reynolds-averaged Navier–Stokes equations solver interFoam of OpenFOAM® (OF), (ii) the weakly compressible smoothed particle...
journal article 2020
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Lashley, Christopher H. (author), Bricker, J.D. (author), van der Meer, J.W. (author), Altomare, Corrado (author), Suzuki, T. (author)
Despite the widely recognized role of infragravity (IG) waves in many often-hazardous nearshore processes, spectral wave models, which exclude IG-wave dynamics, are often used in the design and assessment of coastal dikes. Consequently, the safety of these structures in environments where IG waves dominate remains uncertain. Here, we combine...
journal article 2020
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Gruwez, Vincent (author), Altomare, Corrado (author), Suzuki, T. (author), Streicher, Maximilian (author), Cappietti, Lorenzo (author), Kortenhaus, Andreas (author), Troch, Peter (author)
In this paper, a Reynolds-averaged Navier-Stokes (RANS) equations solver, interFoam of OpenFOAM®, is validated for wave interactions with a dike, including a promenade and vertical wall, on a shallow foreshore. Such a coastal defence system is comprised of both an impermeable dike and a beach in front of it, forming the shallow foreshore...
journal article 2020
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Kar, Attman (author)
Across the world, the presence of humans in coastal regions is always increasing. Hydraulic forcing from extreme events is a large risk around the global coastlines, the risk being complicated by the increased human presence along the coasts.<br/>The knowledge that vegetation can be used as a coastal protection measure is not something new. The...
master thesis 2017
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Hofland, Bas (author), Chen, X. (author), Altomare, Corrado (author), Oosterlo, P. (author)
During the last decades, the spectral wave period <i>T</i><sub>m-1,0</sub> has become accepted as a characteristic wave period when describing the hydraulic attack on coastal structures, especially over shallow foreshores. In this study, we derive an empirical prediction formula for <i>T</i><sub>m-1,0</sub> on shallow to extremely shallow...
journal article 2017
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Oosterlo, P. (author)
In this thesis, a method was developed, with which the infragravity waves and morphological changes of a sandy foreshore are included in the calculation of the probability of dike failure due to wave overtopping. Constructing a natural foreshore in front of the dike can be an attractive and innovative method to decrease the failure probability....
master thesis 2015
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Suzuki, T. (author), Altomare, C. (author), Verwaest, T. (author), Trouw, K. (author), Zijlema, M. (author)
In this paper, a numerical wave-flow model SWASH, based on non-linear shallow water equation with non- hydrostatic pressure, is applied to the estimation of wave overtopping over a dike in shallow foreshores. First sensitivity analysis is conducted to see the influence of wave generation, grid size, time window and bottom friction by one...
conference paper 2014
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Suzuki, T. (author), Verwaest, T. (author), Veale, W. (author), Trouw, K. (author), Zijlema, M. (author)
In this paper, the effect of beach nourishment on wave overtopping in shallow foreshores is investigated with the nonhydrostatic wave-flow model SWASH. Firstly, the applicability of SWASH to model wave overtopping is tested by comparing results with a physical model setup with different storm wall heights on top of an impermeable sea dike. The...
conference paper 2012
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Tuan, T.Q. (author), Verhagen, H.J. (author), Visser, P.J. (author), Stive, M.J.F. (author)
To increase physical insight into wave overwash processes at low-crested beach barriers, wave overtopping discharge events rather than the conventional average overtopping discharge need to be quantified. Also, in order to make intelligent use of the many empirical formulations on wave overtopping discharge at breakwaters from literature, a...
journal article 2006
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Verhagen, H.J. (author)
In case of coasts with steep foreshores coastal structures suffer more from damage than normally could be expected from given boundary conditions at deep water. For that reason in many guidelines it is recommended to apply a heavier class of rock in those cases; manufacturers of single layer units (like Accropode, Core-loc or Xbloc) recommend a...
conference paper 2005
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Van der Meer, J.W. (author)
Bij WL is onderzoek uitgevoerd naar stabiliteit van breukstenen taluds bij (zeer) ondiepe voorlanden. De paper voor Coastal Structures 2003 "Stability of rock slopes with shallow foreshores" door van Gent, Smale en Kuiper is een samenvatting van het werk. Hierin wordt voorgesteld een andere periodemaat te nemen dan in de van der Meer formule en...
report 2004
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van Gent, M.R.A. (author)
report 2001
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Rabbers, H.H. (author)
Het Sieperdaschor is ontstaan uit de voormalige Selenapolder, nadat in februari '90 tijdens een zware storm de zomerkade is doorgebroken. Reparatie bleek te kostbaar en daarom is in overleg met Zeeuws Landschap besloten om de dijk niet te herstellen. Dit bood een goede gelegenheid om de ontwikkeling van polder tot schor te onderzoeken. Dit mede...
master thesis 1998
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Holterman, S.R. (author)
kruinhoogte. Een te lage dijk kan onder extreme omstandigheden bezwijken, waarna inundatie van het achterliggende land volgt. Een te hoge dijk daarentegen betekent dat onnodig hoge aanlegkosten. Het is dus van groot belang de benodigde kruinhoogte van een dijk nauwkeurig te kunnen bepalen. Twee belangrijke faetoren die de benodigde kruinhoogte...
master thesis 1998
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Groenendijk, H.W. (author)
Wave height distributions on shallow foreshores deviate from those in deep water due to the effects of the restricted depth-to-height ratio and of wave breaking. Laboratory data of wave heights on shallow foreshores of different slopes have been analysed to determine these effects and to derive generalised empirical parameterisation. A model...
master thesis 1989
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Van der Most, H. (author)
Het rapport "Literatuuronderzoek bij een hoog voorland" bevat een systematische weergave van de bestaande kennis van het gedrag van golven in een bepaalde ondiepte-situatie. Die situatie betreft een tamelijk vlak, relatief hoog liggend voorland voor een kust met daar boven een geringe waterdiepte, en wel het gebied vanaf de lijn waar de golven...
master thesis 1979
Searched for: subject%3A%22Shallow%255C+foreshore%22
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