A Combined Breakwaters System: A Wave Attenuation Study on the Combination of Submerged and Floating Breakwaters using REEF3D

Coastal zones have been a dynamic area and most favoured locations utilized for living, leisure, recreational activities, tourism, commerce and many other human activities. Submerged and floating breakwaters have been used as effective systems to protect these zones from wave attack. However, they are only effectively functional if the incident...

Physical Model Study of Living Breakwaters: Stability and Ecological Analysis of Green-Grey Hybrid Structure Concept for Climate Change Adaptation

A vast majority (84%) of all countries in the world have coastlines and 80-100% of their population resides within 100 km of the shoreline. Studies show a major growth in population in low-elevation coastal zones and a scenario of rising sea level may force millions of people to relocate. To deal with the increased frequency of extreme events...

Numerical Modelling for Fluid- Structure Interaction of Aquaculture Collar Structures using a Beam Model

More and more aquaculture structures are installed in open water and further offshore due to the fact that a variety of conflicts have arisen with coastal water, eco-system, and inhabitants who live nearby. They can additionally benefit from a high energy environment, for example, strong currents and waves could disperse fish farm waste. However...

The effect of a shallow vegetated foreshore on infragravity waves: A study with SWASH

A specific type of wave is identified as an infragravity wave (IG wave). These waves with very long wave periods, even up to minutes, are possibly dangerous for flood events, increased storm surge and/or failure of coastal defences. Current guidelines for dike safety are often determined for gravity wave dominated systems, so identifying IG...

Numerical Simulation of Hydrodynamic Forces on Bridge Decks

Highway bridges along the coast and small river bridges in mountainous regions can be submerged during storm surges or strong rainfall events, respectively. Loss of serviceability during these conditions can dramatically hamper the evacuation plan and the capacity for emergency transportation, thus it is essential to ensure the stability of...

Unravelling the sandy shorelines dynamics derived from satellite images

Coastal zones all over the world have become heavily populated and developed due to the aesthetic value and diverse ecosystem services that they provide (Luijendijk et al. 2018). In recent years, however, climate change and anthropogenic pressures have exacerbated unprecedented coastal recession, threatening billions of dollars’ worth of coastal...

Coastline evolution around African seaports: An evidence database from space

Seaports are important maritime commercial facilities and key hubs for national and global trades. There is a growing need for seaborne transport and, hence, seaport facilities, especially in emerging economies due to economic and population growth, such as in Africa. In sedimentary environments, port construction may induce coastal impacts...

Wave Transformation on Shallow Foreshores: A Study with SWAN and SWASH

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...

Wave impacts on storm walls, a study on scale effects

Low-lying countries such as Belgium and the Netherlands are naturally susceptible to overtopping wave attacks. Coastal regions are therefore facing the threat of such events causing damage to dike-positioned structures and buildings. Research in this filed is often conducted using scaled-down 2D hydraulic physical models, which introduces so...

Rocking Revisited 2: Measurement on Rocking of cubes in a Double Layer on a Breakwater

Rocking behavior of breakwater research was conducted by Centre for Civil Engineering Research and Codes workgroup CUR C70 (1989) and after that no further validation of the research work has been done. In order to understand the rocking behavior and validate the previously conducted research CUR C70 (1989) wave flume test has been conducted in...

Hydraulic Performance of Xbloc+ Armor Unit

In recent years, the use of Xbloc units has increased exponentially. However, the placement of this unit is not always done as randomly as it should be and consequently, the stability of the armor is affected. In order to overcome this problem, Delta Marine Consultants is developing a new armor unit called Xbloc+ that has a regular placement. In...

Input Reduction Analysis for Long-term Morphodynamic Simulations

Predictions of coastal morphology evolution are necessary to assess engineering solutions as well as understand coastal systems behaviors. Among the tools used to predict morphological evolution are the process-based models that make use of physical laws and empirical knowledge. Such models account for a considerable range of coastal processes...

Wave attenuation over the Oesterdam tidal flat nourishment: Wind-wave transformation in the intertidal zone

The Oesterdam tidal flat nourishment is a hook-shaped nourishment that was constructed in November 2013 in the Kom area of the Eastern Scheldt. One of the objectives of the nourishment is to increase the design life of the Oesterdam in the face of increasing wave loads due to structural erosion of the intertidal flats. A study is conducted in...

Benchmarking Analysis of Port Services from a Perspective of Freight Forwarders

In the time when the World can experience volatility of international trade due to World economic crisis, concentration of the shipping industry and liberalisation of transport markets, port competition is becoming fiercer over the time. In such an environment, freight forwarders’ role is becoming more and more important, representing a valuable...

Mega Container Ships: Implications to Port of Singapore

Today, 90 per cent of goods in the world trade are carried by shipping. There is no doubt that seaport is a vital part of shipping. With the technological advancement in ship technology, seaports are also required to catch up in their port technology and management system in order to be able to stay competitive in the market. Shipyards are able...