Searched for: contributor:"Uijttewaal, W.S.J. (mentor)"
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Ligthart, D. (author)
The Ayeyarwady River is a river with large hydrological variations and an abundance of relatively fine non-cohesive sediment, causing the dynamic behaviour of the river with fast shifting channels. This dynamic behaviour, together with the large hydrological variations, is the source of a frequently flooding river with a moderate navigability....
master thesis 2017
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Jammers, S.M.M. (author)
master thesis 2017
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Koopmans, H. (author)
Over one hundred scour holes are located in the Rhine-Meuse delta. These scour holes have relatively large depths and steep slopes and could pose a risk to the stability of river banks and hydraulic structures, especially since some scour holes are still growing. Scour holes develop at locations where either the hydrodynamics or the erodibility...
master thesis 2017
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Bekker, J.F. (author)
A crown wall is a gravity based L- shaped concrete structure on top of a rubble mound breakwater. Functions of a crown wall are: reduction of wave overtopping, enable transport on the breakwater and placement of pipelines on top of the flat surface. Marine contractor Van Oord was awarded to extend a breakwater with a crown wall on top, located...
master thesis 2017
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Gensen, M.R.A. (author)
Wave overtopping in harbour areas is a fairly untreated topic in the context of flood risk analyses. Pragmatic approaches were undertaken to evaluate the possible influence of wave overtopping on the frequency of flooding. However no consensus was reached on how wave overtopping in a harbour area could be quantified. Therefore it is also...
master thesis 2017
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Pubben, S.G.T. (author)
Estuaries are complex systems that show a variety of hydrodynamic conditions. These conditions are influenced by bathymetry, geometry, climate characteristics, interacting fresh and salt water flows, and mixing effects caused by winds and wind-waves. The interaction between fresh and salt water flows in combination with mixing effects caused by...
master thesis 2017
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Schippers, M.M.A. (author)
After the Deepwater Horizon oil spill in 2010, oil was released into the Gulf of Mexico and partly reached the shorelines. Here, it mixed with sand in the surf zone to form sand and oil agglomerates (SOAs). These cm-sized particles are heavier than water and are therefore found on the seabed. Years after the initial formation of these particles,...
master thesis 2017
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Wetser, A. (author)
Over the past centuries natural riverbanks have been transformed into banks with artificial revetments or sheet piles to protect them from erosion, which led to disappearance of important river features for flora and fauna. River restoration projects show that the removal of man-made bank protections may lead to the formation of bars (e.g. Van...
master thesis 2017
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Loozen, M.M. (author)
The Colorado River with a total length of 2330 km is located in the Southwest of North America, originating from the Rocky Mountains and flowing into the Gulf of California. In 1963 the Glen Canyon Dam was built to generate hydropower. The construction of the dam caused several significant changes in the river system. One of these changes is the...
master thesis 2017
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Vila Santamaria, R. (author)
Bangladesh is characterised by its complex river system, which includes the downstream ends of two of the largest rivers in the world: the Ganges and Brahmaputra. Extremely variable flows and fast morphological changes are the principal characteristics of this system, which presents exceptional challenges for river engineering. Distributary...
master thesis 2017
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Kramer, R. (author)
Momentarily the determination of the static stability of rock on mild slopes can be split in roughly two paths, the empirical and the physical approach. However, both the approaches have their limitations from which one could conclude that neither approach is currently an accurate description of the stability of rock on mild slopes under wave...
master thesis 2016
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van Rooijen, E.J. (author)
Confluences are special, complex elements within river systems which have been subject of much research. However, little attention has been given to the effects of density differences in confluences. The aim of this research is to see when and how density differences are important in confluences with respect to other occurring flow structures....
master thesis 2016
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Korevaar, T.J.A. (author)
Navigation locks are used to transport vessels between waterways with different water levels. In the nearby future many navigation locks will be renovated or replaced. During the design of a new lock still some unknown factors are encountered. One of these factors is the vibration of the valve. The valve is part of the filling and emptying...
master thesis 2016
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Franken, J.T. (author)
To determine the nominal diameter of armour rock for a rubble mound breakwater, the ‘Van der Meer’-formula is frequently used. It requires the so-called 'notional permeability' parameter P, which has been defined for a limited number of structures. Often designed structures deviate from these defined lay-outs. To determine the notional...
master thesis 2016
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Eikelboom, H. (author)
Water spray is a major contributor to icing of ships and maritime structures. The small size of the droplets in the water spray causes them to easily cool down and freeze to the different structures. Icing can hamper operations on both ships and other maritime structures due to blockage of equipment and slippery deck areas. Besides, if icing...
master thesis 2016
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Gijón, A. (author)
Aquatic vegetation attenuates local currents, dampens wave energy and promotes sedimentation. Its function as shoreline defence has gained strong interest in the recent years, since it may offer sustainable and cost-effective solutions to coastal protection problems. Predictions of wave dissipation by macrophytes require understanding of the...
master thesis 2016
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Le, T.N. (author)
Prototype single layer armour units on a breakwater slope are observed to break. To predict when breakage occurs, the objective of this research project is to obtain knowledge on, and measurements of the rocking behaviour and failure mode of single layer armour units. A single cube on a breakwater slope is subjected to investigations. An...
master thesis 2016
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Barrera Crespo, P.D. (author)
The Guayas River estuary supports extensive socio-economic processes. It is formed at the confluence of the Babahoyo and Daule Rivers and runs for around 65 km before discharging into the Pacific Ocean. Its relevance within the national context is linked to the city of Guayaquil, the most populated city and commercial capital of Ecuador....
master thesis 2016
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Kroon, M.E.N. (author)
Natural reefs are important habitats for a wide range of species. Furthermore, they attenuate waves and thereby protect the leeside, functioning as coastal protection. Many reefs are however eroding or degraded, leading to a loss of these ecosystem services. Artificial reefs can reverse this negative trend. The artificial reefs in this context...
master thesis 2016
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Vereijken, K.H. (author)
A hydrodynamic study shows high flow velocities at the IJsselkop bifurcation during the design discharge of 16,000 m3/s. The study, performed in 2005, concludes that these velocities might affect 1) the stability of IJssel river bed and 2) the stability of the grass cover layer of the flood plain at the bifurcation. This report provides a better...
master thesis 2016
Searched for: contributor:"Uijttewaal, W.S.J. (mentor)"
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