Presentations Overview

The current findings highlight that the Frioul port breakwater is seriously damaged and must be rehabilitated. Accordingly, the rehabilitation solution, which consists to replace the actual rock armour unit, was physically modelled, and tested for its hydraulic stability and the overtopping performa...

A wave flume experiment of wave attenuation through cylinder arrays, mimicking wave damping through a coastal mangrove forest in the Mekong Delta, was performed within a wave flume at Delft University of Technology. A state-of-the-art numerical model mimicking the experiment was constructed in SWASH...

Previous studies have shown that wave height attenuation positively correlates with the standing biomass of saltmarshes meadows (Maza et al., 2022) highlighting the crucial role played by this variable that can be used to estimate the ecosystem wave damping capacity without using calibration coeffic...

The effect of vegetation on sediment dynamics gains increasing attention for coastal protection. To assess these effects, laboratory experiments with live or artificial vegetation are widely applied. A major challenge in such experiments lies in the measurement of bed level and bedforms since standa...

A new methodology to investigate air-water flow properties in highly unsteady flows

It is common practice to relate the response of a structure to the incident wave parameters at the toe. Estimation of the incident wave parameters at the toe is thus an essential part of the analysis of experimental data. In many cases, the design conditions at the toe are given by waves that are de...

The severity of damages to riverine structures across German estuaries has increased in the past years due to the increase in the ship-induced loads. Here, the field data of a riverine rock-armored groyne tracked for a year is analyzed; the campaign began after the structure was rebui...

The statistical distribution of waves in short-crested seas is critical for the design of coastal structures, not least because large, breaking waves are known to induce significant wave loads. Despite recent advancements, discrepancies remain in the statistical description of crest heights in finit...

In the lecture “Climate adaptive coastal structures and the role of wave overtopping predictions” of the Coastlab24 short course the following three items will be discussed: a) Climate adaptation of coastal structure including the climate adaptation pathway approach, b) The latest developments o...

Van Oord DMC was awarded the Contract for the Design and Construction of the Addu City Development project in the Maldives. The design of the shore protection works has been verified by means of 2D physical model testing at DHI in Denmark. The steep foreshore and shallow reef flat (very typical for...

Many large estuaries around the world are engineered to some degree for both flood protection and maintenance of shipping routes. Naturally, planforms of sandy estuaries have the tendency to converge landwards exponentially, where deviations from this shape provide alternating space and constriction...

The potential of predictive maintenance for critical port infrastructure, reducing risks and extending its life cycle, remains to be unlocked by suitable quantitative information that fosters predictive maintenance and sustained investments towards progressive climate-proofing of the infrastructure....

Monitoring SSC can be challenging as direct sampling methods are labour intensive and indirect measurements are sensitive to changes in particle properties. Regardless, using ADCPs to predict SSC is promising because of the possibility to capture transport by combining with flow measurements. To red...

The combination of physical laboratory experimentation and the coupling of two CFD numerical models was employed to study the hydraulic behavior and run-up in different typologies of hybrid solutions for coastal flood protection. The results obtained reveal significant discrepancies between the run-...

Industrial outfalls usually contain effluent of a different temperature with additives such as metals, microplastic, and increased salt concentration. To prevent ecological problems, it is essential to monitor environmental conditions and mixing. Accordingly, this research proposes the application o...

The 2011 Tohoku tsunami event proved that scour induced by tsunami waves caused a detrimental impact on coastal defence structures. Limited studies have focused on scour under tsunami waves and presented several predictive models (e.g. Bricker et al., 2012; Jayaratne et al., 2016). However, these mo...

Breakwaters protecting harbors and coastal areas are key to the economic and social development of many countries, but they are also infrastructures which may result in relevant environmental and social impacts. The construction of new breakwaters in developing countries, together with the dismantli...

The Future Dikes project set out a field campaign to assess the erosion resistance of species-rich grass covered dikes, including both small-scale pullout tests and full-scale wave overtopping simulations. However, since it has only been successfully applied on conventional grass-clay covers, the su...

Reef barriers play a major role many coral islands, by sheltering the lagoon from the ocean wave energy and then creating a unique habitat for many species. This filtering action becomes increasingly crucial for ecosystems health and shoreline protection in the context of climate change and related ...

The paper provides background on the Hanbar concrete armour unit which has been used since late 70s in Australia and more recently in New-Zealand. Guidelines for installation, including placement density and damaged coefficient, based on over physical modelling and field installation on over a dozen...

We simulate numerically the interaction of river influxes with tidal propagation in regions of varying complexity for the Scheldt basin (river, tributaries and estuary) and the European continental shelf. While the computational domain for rivers is one-dimensional and extends up to the limit of tid...

While assessing the breakwater stability through a 3D physical model, the normal practice is to modify the structure element if the breakwater is unstable. However, casting a large number of different sizes of concrete armour is time-consuming and costly. This study assessed the utilization of the c...

Laboratory experiments will be conducted to measure the mean flow and turbulence over fixed concrete low and intermediate-angle estuarine bedforms with the use of an Acoustic-Doppler Velocimeter (ADV). Three sets of experiments are planned with modelled shapes resembling that of the estuarine dunes ...

Coastal zones have consistently been among the most appealing settlement areas due to their proximity to the sea, rich natural resources, and the high quality of life they offer. However, these regions are affected to climate change impacts, such as sea-level rise, storm surges, and an increased int...

Permafrost coastlines represent a large portion of the world's coastal area and these areas have become increasingly vulnerable owing to the changing climate and its strong dynamics observed over the past decades (Irrgang et al., 2022). The predominant mechanism of coastal erosion in these areas has...

The deep-water commercial port to be built, object of this paper, is an island port which will be served by a sea access bridge supported by piles. In order to determine the hydrodynamic forces on the various piles of this bridge a three-stages methodology was set up. An analysis of the loads was fi...

This study investigates the spectral distribution of  the wave energy in a coral reef-lagoon system, focusing on very low frequency waves (VLF) and among them resonant waves. The data analysis is constructed on a dedicated methodology for identifying evanescent resonant waves, mainly based on t...

SEABIM® is a patented scan to BIM process that can generate a reliable and complete 3D model of a rubble-mound breakwater precast protective layer (Xbloc®, Accropode™, Core-loc™ etc.). Using computer vision techniques, the known 3D shape of the Concrete Armour Units is detected in a high-resol...