XBeach-G as a Design Tool for Rock on mild slopes under wave loading.

This study describes the stability of rock on a mild slope (e.g. milder than 1:6) under wave loading. This is done because an increasing number of situations occur where mild foreshores are protected from the wave and currents. The empirical stability formula, designed by VAN DER MEER [1988], is not valid for these kind of slopes. Nonetheless,...

Modelling the impact of large scale sediment dumping on the meso-scale hydro- and morphodynamics in the Western Scheldt

The current report aims to understand the hydro- and morphodynamic response of the Western Scheldt in a large sediment dumping operation. This study investigates the estuary’s response to sediment dumping in the Everingen channel area, which is located in the middle of the Scheldt Estuary, The Netherlands. Furthermore, it studies whether these...

Sediment transport in a fringing reef environment: Analysis using laboratory experiments and numerical modelling

Coral reefs are highly valuable structures in many respects and it is increasingly important to understand hydrodynamics and morphodynamics around reefs to be able to better protect them and their hinterland. Flume experiments were performed on a scaled fringing reef in the laboratory facilities of Deltares in Delft. The objective of this thesis...

An Analysis of the Physical Coastal System along East Coast Park, Singapore

East Coast Park is a 15 km long coastal park along the southeast coast of Singapore. It is built on entirely reclaimed land and comprises a sandy shoreline. The beaches along this shoreline are formed due to the implementation of anthropogenic structures all along this stretch of coast through so-called headland control. These structures were...

Schematizing wave boundary conditions in sediment transport modeling around a harbour: A case study for Salaverry-harbour, Peru

For many applications in the field of coastal engineering 2D-morphological models are being applied. Due to the large computational effort these models demand it is nearly impossible to include a full wave climate in long-term morphological modeling. This has asked for waveclimate reduction methods in order to reduce the input and consequently...

The future of the Oosterschelde with a new inlet channel

After the storm surge of 1953, the Dutch Delta project was initiated in order to protect the southwestern part of The Netherlands. A storm surge barrier in front of the Oosterschelde and various dams at the back of the estuary were constructed. These interventions led to a large change of the hydrodynamics of the Oosterschelde: a large decrease...

Feasibility study of an artificial sandy beach at Batumi, Georgia

This master thesis aims to determine the best design option and the feasibility of an artificial sandy beach along the Old Boulevard of Batumi, Georgia. The coastline south of Batumi is affected by erosion problems. The coastal stretch between the port in the north and the Chorokhi River south of Batumi should be protected. In 2010 Alkyon...

The Lagos coast - Investigation of the long-term morphological impact of the Eko Atlantic City project

The Lagos coast has been suffering high rates of erosion since the construction of three harbour moles, i.e. the West Mole, East Mole and the Training Mole, at the tidal inlet connecting the Lagos Lagoon to the South Atlantic Ocean. To provide for a permanent erosion mitigation measure and to create residential and commercial area for circa 400...

The impact of re-surfacing groins on hydrodynamics and sediment transport at the Delfland coast

Objective Due the coastal protection program along the Dutch coast, the groins that first defended the coast against erosion, are now covered under sediment. Due to erosion the covered groins will resurface however. The objective of this study is to investigate the effect of the resurfacing groins on the hydrodynamics and sediment transport....

Long-term morphological model of Poole Harbour

The study focuses on the impact of human interventions on the natural behaviour of estuaries in response to sea-level rise. In particular it focuses on the affect of managed realignment on the critical sea level rise (SLRcrit) for the Poole Harbour. Numerical model ASMITA (Aggregated Scale Morphological Interaction between a Tidal inlet and the...

Sediment Transport in the Westerschelde Delta

The objective of this thesis is to improve the insight into the morphological processes in the outer delta of the Westerschelde estuary, especially those related to the sediment exchange between the delta and the estuary. The main residual sediment transport patterns in the delta have been found to look as follows. On a large scale there is a...

Rip currents, morphodynamic simulations

Rip currents are narrow and intense, offshore directed flows in the nearshore zone. A rip current is able to transport a considerable amount of water and sediment seaward and may dominate the morphological exchange between surfzone and the offshore. Rip currents are often located nearby lateral boundaries that obstruct the longshore current, but...

Sediment transport losses due to washover on a barrier island

The purpose of this study is to quantify the cross-shore sediment transport, caused by washover flows on barrier islands in general and on the Wai San Ting sandbar in Taiwan in particular. Washover transport on a barrier island is the transport of sediment across the sandbar f r om its steeper seaward face towards the gentler sloping landward or...