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Van 't Veld, A.C. (author)The Pampanga and Angat River Delta, located on the northern side of the Manila Bay in a large alluvial plain, are regularly confronted with worsening fluvial and tidal floods. Subsidence rates up to 4.5 cm/year due to excessive groundwater extraction are the main cause of the worsening floods. Five measures are presented to reduce the floods: -...master thesis 2015
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Stengs, B. (author)Recently an unstructured version of Delft3D, named D-Flow FM, has been developed at Deltares. This tool shows high potentials for coastal modelling due to the flexibility in domain resolution and unstructured grids. This MSc thesis focussed on implementing wave effects in D-Flow FM with satisfying results. In addition, a coupling system is built...master thesis 2013
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De Graaf, L. (author)After extensive flooding in 1953, Deltaworks were constructed to protect the Southwest delta in the Netherlands. In the Eastern Scheldt the connection to the North Sea was regulated by an open storm surge barrier and two compartment dams. These decreased the tidal volume and consequently tidal flats are eroding and disappear under water. The...master thesis 2012
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Rijnsdorp, D.P. (author)Infragravity waves are a common feature in the nearshore wave field and have a significant impact on numerous coastal processes. It is therefore important to accurately predict infragravity wave conditions at a given location. However, analytical relations do not exist with which to make such predictions and one has to rely on numerical models....master thesis 2011
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Poortman, S.E. (author)This project focuses on studying and modelling the flow in the sailing area of the 2012 Olympic Sailing Competition, located partly in Portland Harbour and partly in Weymouth Bay, in order to provide accurate and reliable current forecasts for the Dutch Olympic Sailing Team. From literature it follows that the main flow in the area is the tidal...master thesis 2011
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Schmedding, J.P.P. (author)The focus is on the numerical flow model TRIWAQ. It is developed as a hydrostatic free-surface flow model, which is currently being used by the KNMI and Rijkswaterstaat for predictions of water levels in the North Sea and Dutch estuaries. TRIWAQ has successfully been extended to the realm of nonhydrostatic modeling, TRIWAQ-NH, this allows the...master thesis 2011
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Van Wiechen, J.J.J. (author)This Master Thesis presents a numerical model analysis of the response of the Rhine ROFI on wind direction and speed. The aim of this study is to gain a further insight in the physical processes of the Rhine ROFI. Previous work on the Rhine ROFI focused mostly on tidal effects (straining and mixing) and inertial motions (earth rotation). Other...master thesis 2011
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Jacobs, R.P.M. (author)The nearshore zone is an active zone that can be quite inhospitable to humans due to violent wave breaking and strong rip currents. Rip currents are shore normal jet-like currents that typically extend from near the shoreline out past the line of breaking waves. Observations have concluded that a rip current system generally consists of 4 parts....master thesis 2010
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Calvert, S.C. (author)Road users have never had as much travel information as is available today. However the extent of congestion on major roads has also never been as critical as it is now. For this reason road authorities, including Rijkswaterstaat1, aim to inform road users as best they can in an effort to allow the road user to make a more educated decision on...master thesis 2010
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Kroon, J. (author)In numerical modelling of water movement wetting and drying is a well known problem. The governing equations are not valid in the dry part of the computational domain which may result in problems with mass conservation, negative water depths and artificially enlarged gradients. A method is proposed that allows for the surface elevation to become...master thesis 2009
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Benit, M.P. (author)As waves enter the surf-zone, the wave spectra undergo drastic transformations because of depth-induced breaking and triad interactions. Any arbitrary spectrum will converge towards a smooth, universal shape in which initially higher harmonic peaks emerge that disappear as wave propagate further into the surf-zone. The current formulation of...master thesis 2009
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Van der Ham, P.J. (author)Part I: On the time scales of wave processes. To systematically improve the SWAN model a study on the wave physics in a tidal inlet was carried out. The third-generation SWAN model was used to compute the wave processes in a tidal inlet for storm conditions. The computed wave processes are propagation (shoaling, refraction and frequency shifting...master thesis 2009
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Dusseljee, D.W. (author)Strong ocean currents such as the Agulhas Current near South-Africa are alleged to generate freak waves due to the enhancement of wave energy under counter-current conditions. It has been suggested that such enhancement is due to current-induced refraction but it is actually the result of a balance between many processes. To understand this...master thesis 2009
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Smit, P.B. (author)The Indian Ocean Tsunami has once again revived the discussion in the tsunami modelling community if the non-linear shallow water equations are a valid model for the propagation of tsunamis. It is suggested that the mechanism of frequency dispersion which is absent in these equations might be important in the correct modelling of large scale...master thesis 2008
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Bil, R. (author)A search for a victim of drowning is not always successful in practice: according to a rough guess only one out of ten corpses is found during a search by the authorities concerned. Several methods can be used in order to detect a corpse. In The Netherlands it is common to search with (tracker) dogs on the basis of corpse scent. Scent is...master thesis 2008
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Aalberts, M.L. (author)After Hurricane Katrina the Bring New Orleans Back committee advised to use the Gentilly Ridge to split the Orleans Metro Bowl into compartments in order to reduce the consequences of a flood. The Gentilly Ridge is a natural sand elevation (ridge) of approximately 0,50 1,00 meter NAVD88 in the OMB landscape. The objective of this thesis is to...master thesis 2008
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Kranenburg, W.M. (author)On numerous locations in the world mud occurs in front of the coast close to river mouths. This mud can be transported to these places in fluid state or can become fluid under certain wave conditions. Fluid mud may have a strong damping effect on surface waves. Dissipation of up to 90% of the wave energy within a few kilometers has been measured...master thesis 2008
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van der Plas, A.F. (author)Tsunamis are a series of long waves, caused by rapid perturbations of the water level. For Banda Aceh, only submarine earthquakes are a likely cause of tsunami-generation and only negative waves (with an initial decrease of the water level) will arrive at the shore line. The probability of tsunamigenic earthquakes in Banda Aceh was investigated,...master thesis 2007
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- van Nieuwkoop, J.C.C. (author) master thesis 2007
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van Eekelen, E.M.M. (author)The overflow mixture of hopper dredgers contains fine sediment which when released in the environment forms a so-called plume. The spreading of this sediment and the related turbidity increase and sedimentation pattern can be of environmental importance. Understanding the behaviour of these plumes is therefore important. The first phase of the...master thesis 2007