Searched for: department:"Hydraulic"
(1 - 15 of 15)
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Hop, M. (author)
The Rhine ROFI ( region of freshwater influence) is a dynamic area where various processes and timescales come together. Research has shown that stratification caused by the freshwater outflow of the Rhine alters the tidal currents in front of the Dutch coast. In the case of the Netherlands the tide behaves like a kelvin wave, which causes...
master thesis 2017
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Geerlof, R.W. (author)
This document describes a study into the influence of alongshore bathymetric variability on currents which form a risk to bathers. Changes to coastal zone management along the Delfland Coast have given rise to questions on the influence of alongshore bathymetric variability on bather risk. Extensive measurement data is available from two...
master thesis 2017
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Van Laerhoven, C.R. (author)
Since their development in the 1970s, mesoscale atmospheric models have been used for a variety of meteorological applications. Over the years, the models have evolved and nowadays, state-of-the-art atmospheric models are capable of operating on spatial resolutions in the order of kilometres. In the hydraulic engineering community, atmospheric...
master thesis 2016
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De Wit, F.P. (author)
Alongshore currents are currents parallel to the coastline. In coastal areas they are driven by a combination of wave and tidal forcing. In this study, the validity of the non-hydrostatic, wave-flow model SWASH to predict these currents is investigated. This is done by comparing model predictions with measurement observations. Observations were...
master thesis 2016
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Doets, I.J.E. (author)
Controlling the distribution of water and sediment at river bifurcations is one of the main challenges in river engineering and management. This distribution affects the stability of river bifurcations as well as the distribution of flooding risk, navigability and environmental conditions. The governing factors are the hydrodynamics of the two...
master thesis 2015
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Choy, D.Y. (author)
Offshore sand waves of several meters high and hundreds of meters long are formed in shallow seas due to the tidal currents. These sand waves can, amongst others, influence the burial depth of cables of offshore wind farms and obstruct navigation channels. For the Far Large Offshore Wind programme (FLOW), one of the goals of Deltares is to...
master thesis 2015
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Van Heemst, C. (author)
This thesis investigates the stability of a crown wall situated above SWL (Still Water Level) on top of a rubble mound breakwater. Crown walls are concrete super structures implemented commonly to provide a flat surface for pipelines and to make the breakwater accessible for vehicles. The vertical distance between SWL and the bottom of the crown...
master thesis 2014
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Van der Baan, A.L. (author)
Shore-parallel submerged breakwaters (SBWs) appear as an attractive form of coastal protection. Compared to their emergent counterpart there is no impact on the beach amenity and aesthetics. In addition, there is a possibility for recreational purposes. However, the actual application of SBWs is often discouraged because the complexity of the...
master thesis 2013
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Biesheuvel, A.C. (author)
From previous engineering projects it turned out that it is difficult to determine the transmitted wave height of floating breakwaters without performing physical models or using numerical models. In this thesis it is investigated which steps should be taken during the preliminary design process in order to predict the effectiveness (wave...
master thesis 2013
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Kulkarni, R. (author)
The purpose of this research is to model coastal erosion at a site on the Ural coast of the Baydara Bay, Russia. The research carried out in this thesis, aims to create a model to represent the hydrodynamics and sediment transport patterns prevalent at the site, using MIKE21 developed by DHI. The model is calibrated using the available data. The...
master thesis 2013
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Weij, D. (author)
Bedforms play an important role in the sediment transport of a river. Because of their importance many experiments have been carried out to better understand bedforms. Most experiments concern transverse bedforms (with crests aligned perpendicular to the flow direction). However, bathymetry measurements show many instances of oblique dunes....
master thesis 2012
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Kamath, A.M. (author)
Non-breaking wave forces on a cylindrical pile are calculated numerically by solving the three-dimensional Navier Stokes equations in the numerical wave tank of REEF3D. Initially, the numerical wave tank is validated by comparison of the numerical results with the analytical solutions for varying grid density, time step size, numerical beach...
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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Van Rooijen, A.A. (author)
The swash zone is the part of the beach that reaches from the limit of wave run-up until the limit of wave run-down. It is recognized as being a dynamic area of the nearshore region, characterized by strong and unsteady flows, high turbulence levels, large sediment transport rates and morphological changes on a small timescale. Due to the...
master thesis 2011
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Pruis, K.W. (author)
The barrier islands in the Gulf of Mexico are regularly exposed to hurricanes, one of the main functions of the islands is to protect the mainland. Due to climate change the frequency and intensity of hurricanes is expected to change, which may affect the long term evolution of the islands. In this study these long term (decadal) morphological...
master thesis 2011
Searched for: department:"Hydraulic"
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