Wave dissipation on a complex coral reef: An experimental study

Atolls and coral islands in and around the Pacific and Atlantic Ocean largely rely on coral reefs for their coastal protection. On these reefs a large roughness is created by different coral species. The dissipative character of these species reduces the incident wave height, thereby reducing the amount of run-up on the coast. In our current...

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...

Modelling of hydrodynamic and erosion processes at vegetated lake shores: Development of a process-based tool for the design of the protection of a lake shore with reed-like vegetation

In recent years, the interest in integrating shore protection with the local ecosystems has increased. In comparison with the traditional reinforced embankments, integrated shores form a gradual transition from land to water where shore vegetation can establish itself. These nature-friendly shores have a positive impact upon the water quality,...

Wave dissipation in a permeable structure: Experimental research on the physical processes causing energy dissipation inside an array of cylinders

Mangrove forests, which serve as a natural sea defence, have been degraded by human action during the last decades. To protect and recover these areas, different types of permeable structures consisting of bamboo have been proposed and applied. However, these structures are currently based on engineering judgement, as design rules are not...

Wave Flume Experiments on Permeable Structures: The effect of arrays of cylinders on wave reflection, dissipation and transmission

Due to the removal of mangrove forests, coastal zones can suffer from severe erosion. One of the proposed solutions is the construction of permeable structures. This study aims to optimise the design of permeable (brushwood) structures in order to restore the sediment balance and encourage mangrove re-establishment on tropical mud coasts....

Simulation of Nearshore Processes and Testing of Implicit and Explicit Vegetation Representations in SWAN

Using data made available by George Mason University (GMU), a U.S. university situated in Virginia. Field data is used to validate both a Delft 3D and SWAN standalone model. The paper not only shows the difference between the implicit manning roughness approach and the explicit cylindrical vegetation approach, but also provides a comparison...

Golfbrekerontwerp voor rustig golfklimaat ten behoeve van de havenuitbreiding van St. Eustatius, Nederlandse Antillen

Nadat een orkaanwaarschuwing voor het Caribisch gebied, waarin gelegen het eiland St. Eustatius, is afgegeven, vertrekken plezierjachten, cruise-schepen en vissersbootjes naar veilige gebieden, waardoor de haven van St. Eustatius geen functie heeft tijdens het passeren van een orkaan. In deze haalbaarheidsstudie is onderzocht of het mogelijk is...