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de Wit, F.P. (author), Tissier, M.F.S. (author), Reniers, A.J.H.M. (author)Coastal systems are influenced by a combination of waves and tides. In certain cases, tide-induced alongshore currents can be of similar order or even larger than wave-induced currents. Until now, however, no detailed wave-resolving modelling studies included tidal currents. This paper presents a method to implement alongshore tidal currents by...conference paper 2017
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Tissier, M.F.S. (author), Bonneton, P (author), Ruessink, Gerben (author)The phenomenon of bore merging is investigated using two high-resolution laboratory experiments including bichromatic and irregular wave conditions. The locations at which waves start merging are identified and the hydrodynamic conditions in the vicinity of the merging points are examined. Bore merging takes place in the inner surf zone for all...conference paper 2017
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Kroon, J. (author), de Schipper, M.A. (author), den Heijer, C. (author), Aarninkhof, S.G.J. (author), van Gelder, P.H.A.J.M. (author)In the present time of sea-level rise and climate change a global shift has occurred toward sandy coastal protection measures and Building with Nature. These type of protection measures impose extra uncertainty on the instantaneous state of the coastal system over time for which present deterministic forecasting techniques are not capable of...conference paper 2017
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Salmon, J.E. (author)Stochastic wave models play a central role in our present-day wave modelling capabilities. They are frequently used to compute wave statistics, to generate boundary conditions and to include wave effects in coupled model systems. Historically, such models were developed to predict the wave field evolution in deep water where the conditions of...doctoral thesis 2016
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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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de Vet, P.L.M. (author), van Prooijen, Bram (author), Schrijvershof, R. (author), van der Werf, JJ (author), Schrijver, MC (author), Wang, Zhengbing (author)The flow velocities in tidal channels are already rather complex by the presence of various tidal components, wind driven flow and estuarine circulations. An extra level of complexity is introduced when the flow on top of an intertidal<br/>flat is considered (Le Hir, 2000). This research aims at understanding the complex flow patterns on top of...abstract 2016
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Rijnsburger, S. (author), Audibert, R.F. (author), Souza, Alejandro J. (author), Horner-Devine, Alexander R. (author), Pietrzak, J.D. (author)River plumes, also regions of freshwater influence , are important features to understand because of their impact on the current structure, stratification and the transport of fine sediments, nutrients and contaminants. One important river plume is the Rhine ROFI. Prior studies have sought to understand far-field dynamics where cross-shore...abstract 2016
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Weij, D. (author), Keetels, G.H. (author), Goeree, J.C. (author), van Rhee, C. (author)To model submarine flows of granular materials we propose an extension of the drift-flux approach. The extended model is able to represent dilute suspensions as well as dense granular flows. The dense granwular flow is modelled as a Herschel–Bulkley fluid, with a yield stress that depends on the dispersed phase pressure. Qualitative numerical...journal article 2016
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Wang, B. (author), Hicks, M.A. (author), Vardon, P.J. (author)The random material point method (RMPM), which combines random field theory and the material point method (MPM), is proposed. It differs from the random finite-element method (RFEM), by assigning random field (cell) values to material points that are free to move relative to the computational grid rather than to Gauss points in a conventional...journal article 2016
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Pisano, F. (author), Flessati, L (author), di Prisco, C (author)Macroelement plasticity models are being increasingly applied to study non-linear soil–foundation interaction (SFI) problems. Macroelement models are particularly appealing from a computational standpoint, as they can capture the essence of SFI by means of a few degrees of freedom. However, all the macroelement formulations available in the...journal article 2016
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Ramos, N. (author)An increasing number of activities are moved into Arctic regions. As oil and gas companies are exploring the options in these regions, structures are required which can withstand the severe environmental conditions. Existing structures are subjected to heavy mechanical loads due to moving ice sheets. For concrete structures in particular ice...master thesis 2015
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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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Ye, H. (author)Solid-State Lighting (SSL), powered by Light-Emitting Diodes (LEDs), is an energy-efficient technology for lighting systems. In contrast to incandescent lights which obtain high efficiency at high temperatures, the highest efficiency of LEDs is reached at low temperatures. The thermal management in LED product is then a key design parameter as...doctoral thesis 2014
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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 den Bos, J. (author), Verhagen, H.J. (author), Zijlema, M. (author), Mellink, B. (author)A more detailed understanding of porous flow inside a rubble-mound structure may have potential benefits in breakwater design. Numerical models are expected to be a useful additional research tool in this field, provided that their calculation results can be validated against measurements. This paper presents the results of a systematic effort...conference paper 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