Physical Modelling of 3D-Printed Artificial Reefs with Complex Shapes in the Wave Flume

Coral reefs are considered to be a crucial ecosystem and form of natural coastal protection. They owe their effectiveness to their high structural complexity. This complexity, which positively influences aspects like species richness, coral recovery, live coral cover, and coastal protection, is often quantified using parameters such as porosity...

Wavepool in a Natural Lake Environment: A Design Study for the Edges of an Artificial Surf Reef in the Noorderplas, Roermond

Wave surfing is a water sport in which a surfer uses a board to ride a wave towards the shore. It is done in the coastal areas around the globe. Each surf spot has its own wave quality depending on the wave climate and the type of coast. Some spots have year-round perfect waves and other surf spots only work ’when the stars are aligned.’ The...

Simulating wave attenuation by an offshore floating solar system

Because the demand for green energy increases rapidly, it is expected that solar and wind energy will dominate future power generation. New in this field is the development of offshore floating solar systems, consisting of multiple interconnected platforms that are covered with PV panels. Besides satisfying the demand for electricity, these...

Effect of an artificial oyster reef on wave attenuation

An increasing amount of the worlds coastal regions suffer from structural erosion due to anthropogenic influences. A prime example for this phenomenon is the Oosterschelde, Netherlands, where the partial closure of an estuary lead to a decline of the local intertidal flats, threatening the valuable functions they provide as an ecosystem and for...

Nature-based bank design for the east side of Buiteneiland, IJburg, Amsterdam

The Engineering Office of the municipality of Amsterdam is developing six man-made islands in the IJmeer. One of the last islands will be Buiteneiland. The location and orientation of Buiteneiland is been agreed when IJburg was designed. The area of interest of this study is the land-water transition at the east side of the island. The IJmeer's...

Spectral Wave Dissipation by Vegetation: A new frequency distributed dissipation model in SWAN

Climate change puts under pressure existing and future coastal interventions. Growing threats like sea-level rise and intensity of storms require solutions to be adaptable and resilient. Nature-based solutions have shown to tackle these challenges while providing social, environmental, and economic benefits. The role of vegetation in coastal...

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...

Wave-Driven Set-Up of Fluid Mud: Demak, Indonesia

Demak is a regency within the province of Central Java, Indonesia, with a mud-mangrove coast bordering the Java Sea. The region is facing a rapid retreat of the coastline, threatening the livelihood of a large part of the population. The main cause of the erosion is the deforestation of the green belt of mangroves. This has disturbed the...

Modular Hybrid Coastal Protection Structure: Pilot site: Montego Bay, Jamaica

Tourism is one of the main sources of income of Jamaica. . However, at the moment the beaches are retreating. An example is the erosion of Hellshire Beach, showing a retreat of ten meters in only seven years. To preserve the beaches effectively, a new concept is requested. The main requirements of the system are wave attenuation and the marine...

Reliability of willows for wave load reduction on river dikes: Design and maintenance principles for willow vegetation based on the quantified natural and knowledge uncertainties

Flood defenses are important to keep large parts of the Netherlands dry. These primary flood defences<br/>are every twelve years assessed on safety during the Dutch national safety assessment. In 2017, the new<br/>safety standards (WBI2017) were introduced. These stricter standards caused that in total 251 km of the<br/>primary flood defences...

Quantifying Wave Attenuation by Nature-based Solutions in the Galveston Bay

The main objective of this thesis is to assess the effectiveness of Nature-based Solutions in reducing flood risk in the Galveston Bay by means of wave attenuation. The methodology to answer these questions consists of both literature review and numerical modelling. The wave height reducing capabilities of marsh vegetation, seagrass meadows and...

Engineering design guidelines for salt marsh development: Focused on the effect of grazing strategies on the coastal protection property

The main objective and secondary objective, which corresponds to the in-depth research are as follows:<br/><br/>(1) To develop guidelines for engineers to include salt marshes in hydraulic infrastructure projects, subject to the Building with Nature philosophy.<br/>(2) To investigate the effect of grazing at salt marshes on the coastal...

Wave Transformation Through Mangrove Coasts: A Model Study with XBeach-Surfbeat

Coastal defense mechanisms are an integral part in the safety of infrastructure and communities residing on coastlines around the globe. In long temporal and spatial scales, traditional “hard structures” for coastal defense can become infeasible. Incorporation of soft engineering methods for coastal defense can then be a viable solution....

The Effectiveness of Mangroves in Attenuating Cyclone- induced Waves

A study of the effectiveness of mangroves in attenuating cyclone- induced waves was done using the SWAN 40.55MOD numerical model. Hydraulic parameters during extreme events and local mangrove vegetation parameters were estimated for the Kanika Sands mangrove island near the upcoming Dhamra Port in Orissa, India. Simplified generic analyses were...