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Aeolian surface erodibility measured on the Sand Engine: From mobile wind tunnel design towards field expeditions

van Langeraad, Mark (author)

Building with Nature is a sustainable approach to design multifunctional flood defences (e.g., accommodating recreational services, nature development, etc.) that harness natural forces as much as possible. Building with Nature therefore extensively involves coastal dunes. These dynamic sandy barriers naturally grow because of aeolian processes....

master thesis 2024

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Hydraulic stability of a living breakwater: Wave flume experiments

Geenen, Pieter (author)

Coastal structures such as breakwaters can mitigate the erosive effects of sea level rise by protecting shorelines from wave impact. The Reef Enhancing Breakwater (REB) is a modular, permeable structure designed to dissipate wave energy and boost marine biodiversity by providing suitable habitats. This research investigates...

master thesis 2024

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Seed-sediment Dynamics: An experimental study into the behaviour of seagrass seeds in a sand mixture informing a novel approach for large scale seagrass restoration

Alkemade, Anne-May (author)

<br/>In response to the sharp decline of seagrass globally, various restoration techniques have been developed and applied; many at limited scale and with limited success. This research focuses on the fluid mechanics and behaviour of seagrass seeds in a sand mixture through physical laboratory experiments. The objective is to establish a...

master thesis 2024

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Mangrove-Sediment Connectivity in the Presence of Structures Used to Aid Restoration: A Demak Case Study

Thillaigovindarasu, Raghavi (author)

Mangrove forests are important wetland ecosystems that inhabit intertidal zones within tropical and sub-tropical latitudes. They offer a diverse array of ecosystem services, including coastal protection and carbon sequestration. Despite their significance, global mangrove cover has declined in recent decades, prompting various restoration...

master thesis 2023

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Open Inverted Filters: Impact of fines content, coefficient of uniformity, and effective stress on inverted geometrically open granular filters in terms of parallel and perpendicular gradients

Besseling, Roos (author)

This study investigates the capacity of an open inverted filter to stabilize the interface between the sand fill and core fill in a rubble mound breakwater. The strength of this filter relies on the arching mechanism of the base material, which is directly influenced by factors such as stability ratio and effective stresses. These forces arise...

master thesis 2023

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Dune Erosion on the Falsterbo Peninsula: Assessing the Dune System for Coastal Safety in Regions with Complex Interactions Between Waves and Water levels

Sukchaiwan, Emmy (author)

The Falsterbo Peninsula is a low-lying area that provides a home to 7,000 residents, as well as various bird and vegetation species. To protect this densely populated area, the municipality was granted a permit to build flood protections. As part of the strategy, the dune system in the study area will be used as natural barriers against storm...

master thesis 2023

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Offshore Pumped Storage Hydropower: Design, Planning and Cost Assessment

Nessen, Sicco (author)

This research aims to improve the current knowledge and insight into the construction process, logistics, and construction costs associated with the offshore pumped storage hydropower plant. The main objective is to enhance the construction costs by optimizing the work method based on these sheltering effects.<br/><br/>The diffraction and...

master thesis 2023

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The maximum influence of wind on wave overtopping at mildly sloping dikes with a crest element

Dijkstra, Sam (author)

Due to the rising sea level in combination with land subsidence there is a need to reinforce the dikes. The use of a crest element to increase the height of the dike is an effective and relatively cheap way to reinforce the dikes (Hogeveen, 2021). When a crest element is used, the jet generated by wave breaking on the dike slope impacts on the...

master thesis 2023

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The influence of bivalve shells, of different shapes and sizes, on current-driven sediment transport: Experimental flume study

Haarbosch, Steven (author)

In the Netherlands, the coastlands act as the principal protection against the sea. Without human interventions, the Dutch coast would be eroding due to an imbalance in the sediment budget of the coastal zone. The preferred coastal management strategy is sand nourishment, which have become larger in scale and more complex over the last 70 years....

master thesis 2023

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Investigation of Morphological Changes along the South West Texel Coastline and the Initial Response of a Mega Nourishment

Francken, Felix (author)

In 1990 the Dutch government passed legislation that dictates the South West Texel coast must be maintained with regard to the 1990 coastline. The coast is currently maintained by applying shoreface and beach nourishments with an interval of approximately 3 years, because it experiences erosion. The problems with this approach are that the...

master thesis 2023

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Predicting the short-term response to inlet interventions in Lake Bardawil: A study on the initial hydrodynamic and morphological response to inlet dredging interventions in Lake Bardawil, a shallow micro-tidal lagoon in northern Egypt

Hoek, Wouter (author)

Lake Bardawil is a hypersaline shallow micro-tidal double-inlet lagoon on the northern coast of the Sinai Peninsula in Egypt. The inlets, named Boughaz 1 and Boughaz 2, connect Lake Bardawil to the Mediterranean Sea. The local population relies on the fishing yields from the lagoon, however, in the current situation, the lagoon’s inlets are...

master thesis 2023

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Integrating coral habitat potential and coastal protection services in design of artificial reefs: A case study in Addu City, Maldives

Douwes, Anne (author)

This research focuses on the implementation of the Building with Nature (BwN) approach in the design of artificial coral reefs. The goal is to explore environmental preferences and design tools for coral development, considering both coral habitat potential and coastal protection services. The research also aims to optimize artificial reef...

master thesis 2023

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Numerical Modeling of Constructed Foredune Blowouts in the Dutch Dunes

van Manen, Menno (author)

The Netherlands is a country with a history of human activity along the coast to ensure water safety. In the 1990's a new approach to coastal management was adopted that allowed for more experimentation in the Dutch dunes. Since then a slew of different types of projects have been undertaken, one of which is the construction of foredune blowouts...

master thesis 2023

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Dune foot behaviour and erosion of sandy coastal defences in annual storm conditions

van der Ven, Roald (author)

Storm surges cause elevated water levels, potentially leading to dune erosion, which is crucial to understand due to the protective function of dunes and sandy coastal defences against flooding. Dunes are dynamic systems, extensively studied through flumes and field observations. Collecting hydrodynamic and morphological data from erosion-prone...

master thesis 2023

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Analyzing the boundary conditions of the innovative technique of agitation dredging, the Tiamat

Neumann, Sterre (author)

Sedimentation is a common issue in navigating through channels, berths and anchorages of many ports and harbors. In order to address this issue, maintenance dredging can be done in three different ways; relocating of the sediments, keeping the sediments in place, or dredging with nature and using the natural currents to remove sediment. Trailing...

master thesis 2023

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The effect of sediment grain size on dune erosion: Experimental field study on the effect of sediment grain size on dune erosion at the Sand Engine by conducting manipulative field experiments

de Hullu, Cato (author)

Along the Dutch coastline, coastal dunes act as the primary sea defence to protect the low-lying areas behind it from flooding. To ensure that these dunes are strong enough to meet national safety standards, models are used to assess their strength. Even though our modelling capabilities have significantly improved over the years, model...

master thesis 2023

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Numerical modeling of wave transmission over a living breakwater

Kadoglou, Kimon (author)

Living Breakwaters have evolved from traditional breakwaters to create multi-purpose structures that provide environmental and social benefits. These breakwaters promote a healthy habitat for flora and fauna, while achieving the same structural capabilities as conventional structures. Reefy has developed a modular living breakwater that can...

master thesis 2023

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

Speth, Florine (author)

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...

master thesis 2023

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Beach development in Oranjestad Bay, St. Eustatius: A study of the morphological system and possible coastal solutions for the creation of a beach

Adank, Karlijn (author)

Sint Eustatius is a Caribbean island located in the north of the Lesser Antilles. The coastline west of the capital, Oranjestad Bay, is of vital importance to the island as it is here where tourism, recreation, the harbour and historical ruins are located. On the other hand, Oranjestad Bay has a heavily fluctuating beach, which is undesirable....

master thesis 2023

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Impact of the Eastern Scheldt Storm Surge Barrier on the Morphodynamics of the Ebb-Tidal Delta: In relation to coastal management

Krikke, Lars (author)

Threatened by rising sea levels and other climate change induced hazards, there is an increased need for coastal flood protection, such as storm surge barriers. However, the construction of such barriers may lead to unwanted coastal changes. This thesis examines the effect of the Eastern Scheldt storm surge barrier on sediment pathways and the...

master thesis 2023