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Non-Hydrostatic Modelling of Coastal Flooding in Port Environments

Suzuki, T. (author), Altomare, Corrado (author), Willems, Marc (author), Dan, Sebastian (author)

Understanding key flooding processes such as wave overtopping and overflow (i.e., water flows over a structure when the crest level of the structure is lower than the water level in front) is crucial for coastal management and coastal safety assessment. In port and harbour environments, waves are not only perpendicular to the coastal...

journal article 2023

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Numerical investigation of wave-induced flexible vegetation dynamics in 3D using a coupling between DualSPHysics and the FEA module of Project Chrono

El Rahi, Joe (author), Martínez-Estévez, Iván (author), Tagliafierro, Bonaventura (author), Domínguez, José M. (author), Crespo, Alejandro J.C. (author), Stratigaki, Vasiliki (author), Suzuki, T. (author), Troch, Peter (author)

Vegetation meadows in coastal waters are a key constituent of a future green defense package due to the ecosystem services they provide and the potential to attenuate wave energy. To numerically describe the vegetation dynamics under wave action, this paper presents a novel application of a numerical coupling for solving fluid–elastic...

journal article 2023

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Wave Breaking Induced by Opposing Currents in Submerged Vegetation Canopies

Hu, Z. (author), Lian, S. (author), Zitman, T.J. (author), Wang, H. (author), He, Z. (author), Wei, H. (author), Ren, L. (author), Uijttewaal, W.S.J. (author), Suzuki, T. (author)

Wave height attenuation in vegetation canopies is often all attributed to the drag force exerted by vegetation, whereas other potential dissipation process is often neglected. Previous studies without vegetation have found that opposing currents can induce wave breaking and greatly increase dissipation. It is not clear if similar process may...

journal article 2022

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Wave overtopping at near-vertical seawalls: Influence of foreshore evolution during storms

Briganti, Riccardo (author), Musumeci, Rosaria Ester (author), van der Meer, Jentsje (author), Romano, Alessandro (author), Stancanelli, L.M. (author), Kudella, Matthias (author), Akbar, Rizki (author), Altomare, Corrado (author), Suzuki, T. (author)

This work presents the results of an investigation on how wave overtopping at a near-vertical seawall at the back of a sandy foreshore is influenced by sequences of erosive storms. The experiments were carried out in the Large Wave Flume (GWK) at Leibniz University, Hannover (Germany). The tested layout consisted of a near-vertical 10/1...

journal article 2022

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Corrigendum to “Non-hydrostatic modeling of drag, inertia and porous effects in wave propagation over dense vegetation fields”

Suzuki, T. (author), Hu, Zhan (author), Kumada, Kenji (author), Phan Khanh, L. (author), Zijlema, M. (author)

The authors regret that there was a typo in Equation (14b). 

journal article 2022

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Simulation of 3D overtopping flow–object–structure interaction with a calibration-based wave generation method with DualSPHysics and SWASH

Suzuki, T. (author), García-Feal, Orlando (author), Domínguez, José M. (author), Altomare, Corrado (author)

Ongoing climate change is a significant threat to coastal communities. To understand potential risks during extreme storm events, detailed post-overtopping processes are investigated using DualSPHysics and SWASH with a newly developed approach. It is a calibrated-based wave generation: a target incident wave is first obtained from the...

journal article 2022

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Laboratory data on wave propagation through vegetation with following and opposing currents

Hu, Zhan (author), Lian, Simei (author), Wei, Huaiyu (author), Li, Yulong (author), Stive, M.J.F. (author), Suzuki, T. (author)

Coastal vegetation has been increasingly recognized as an effective buffer against wind waves. Recent laboratory studies have considered realistic vegetation traits and hydrodynamic conditions, which advanced our understanding of the wave dissipation process in vegetation (WDV) in field conditions. In intertidal environments, waves commonly...

journal article 2021

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Formulating Wave Overtopping at Vertical and Sloping Structures with Shallow Foreshores Using Deep-Water Wave Characteristics

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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Wave interactions with coastal structures

Suzuki, T. (author), Altomare, Corrado (author)

contribution to periodical 2021

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Wave transmission and drag coefficients through dense cylinder arrays: Implications for designing structures for mangrove restoration

Gijón Mancheño, A. (author), Jansen, W. (author), Uijttewaal, W.S.J. (author), Reniers, A.J.H.M. (author), van Rooijen, A. A. (author), Suzuki, T. (author), Etminan, V. (author), Winterwerp, J.C. (author)

Mangrove vegetation constitutes a natural coastal defence against waves and erosion. Despite their protective role, mangrove ecosystems have experienced continuous degradation over the last decades due to human causes. At retreating mangrove coastlines, bamboo structures are built to create new habitat for mangrove colonization. Existing...

journal article 2021

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On the accuracy of internal wave generation method in a non-hydrostatic wave model to generate and absorb dispersive and directional waves

Vasarmidis, Panagiotis (author), Stratigaki, Vasiliki (author), Suzuki, T. (author), Zijlema, M. (author), Troch, Peter (author)

The weakly reflective wave generation is a wave generation and absorption method in phase-resolving models, based on the assumption that the waves propagating towards the wave generation boundary are small amplitude shallow water waves with direction perpendicular to the boundary. This assumption makes the method weakly reflective for...

journal article 2021

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An inter-model comparison for wave interactions with sea dikes on shallow foreshores

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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Relative Magnitude of Infragravity Waves at Coastal Dikes with Shallow Foreshores: A Prediction Tool

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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Benchmarking of numerical models for wave overtopping at dikes with shallow mildly sloping foreshores: Accuracy versus speed

Lashley, Christopher H. (author), Zanuttigh, B. (author), Bricker, J.D. (author), van der Meer, J.W. (author), Altomare, Corrado (author), Suzuki, T. (author), Roeber, Volker (author), Oosterlo, P. (author)

Practitioners often employ diverse, though not always thoroughly validated, numerical models to directly or indirectly estimate wave overtopping (q) at sloping structures. These models, broadly classified as either phase-resolving or phase-averaged, each have strengths and limitations owing to the physical schematization of processes within...

journal article 2020

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Validation of RANS modelling for wave interactions with sea dikes on shallow foreshores using a large-scale experimental dataset

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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Overtopping metrics and coastal safety: A case of study from the catalan coast

Altomare, Corrado (author), Gironella, Xavi (author), Suzuki, T. (author), Viccione, Giacomo (author), Saponieri, Alessandra (author)

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...

journal article 2020

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Reduction of wave overtopping and force impact at harbor quays due to very oblique waves

Dan, Sebastian (author), Altomare, Corrado (author), Suzuki, T. (author), Spiesschaert, Tim (author), Verwaest, Toon (author)

Physical model experiments were conducted in a wave tank at Flanders Hydraulics Research, Antwerp, Belgium, to characterize the wave overtopping and impact force on vertical quay walls and sloping sea dike (1:2.5) under very oblique wave attack (angle between 45° and 80°). This study was triggered by the scarce scientific literature on the...

journal article 2020

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Experiences with SWASH on modelling wave propagation over vegetation: Comparisons with lab and field data

Reis, Rui Almeida (author), Pires-Silva, António A. (author), Juana Fortes, Conceição (author), Suzuki, T. (author)

The vegetation capacity to protect the coasts from wave action is becoming more important and attractive due to ongoing sea level rise and increasing storminess. In addition, it is a quite environmentally friendly way. Quantifying the vegetation effect in wave propagation will be relevant for coastal management. A non-hydrostatic wave model...

journal article 2020

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Characterization of overtopping waves on sea dikes with gentle and shallow foreshores

Suzuki, T. (author), Altomare, Corrado (author), Yasuda, Tomohiro (author), Verwaest, Toon (author)

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...

journal article 2020

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Non-Repeatability, Scale- and Model Effects in Laboratory Measurement of Impact Loads Induced by an Overtopped Bore on a Dike Mounted Wall

Streicher, Maximilian (author), Kortenhaus, Andreas (author), Altomare, Corrado (author), Hughes, Steven (author), Marinov, Krasimir (author), Hofland, B. (author), Chen, X. (author), Suzuki, T. (author), Cappietti, Lorenzo (author)

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...

conference paper 2019