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Lugt, D. (author)
The Ems estuary suffers from high concentrations of suspended sediment, which is harmful for the life in the river. Sediment import occurs because of tidal asymmetry, a difference between the velocity of the current during high tide and low tide. The use of retention basins are a possible measure to reduce the tidal asymmetry. An analytic model,...
bachelor thesis 2012
document
Ariëns, E.E. (author)
Experimental research on erosion behind stone bed protections. A relation is looked for between the stability parameter of the bed material and the erosion parameter alpha. Roughness and turbulence have been investigated.
master thesis 1993
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van Ekdom, K. (author)
The objective of this research is to contribute to the understanding of the morphological behaviour of a sandy foreshore in the Markermeer, along the Houtribdijk. The research is primarily based on monitoring data obtained from the Building with Nature (EcoShape) project “Pilot Houtribdijk”. The focus is on the morphological development of the...
master thesis 2017
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Langen, R. (author)
In dit rapport is een studie verricht naar de geldigheidsgebieden van enkele sedimenttransport formules.Een sedimenttransport formule geeft de relatie tussen de hydraulische omstandigheden en het sedimenttransport. Over het algemeen wordt de relatie gegeven met dimensieloze parameters. De meeste formules hebben slechts een beperkte theoretische...
master thesis 1978
document
Van Damme, M. (author)
Extracellular Polymeric Substance is found to be responsible for the stabilizing behaviour of biofilms on sediment, but studies disagree on how this stabilizing effect is achieved and what processes are involved in making an EPS biofilm shear off. This study answers the question how the biofilms achieve the stabilizing effect and what processes...
master thesis 2009
document
Van Hemmen, A.J.M. (author), De Lange, W.M.J. (author)
Deel I: Gegeven is het Oostelijk Banjir Kanaal zoals beschreven in "Explanatory note on the design of the Eastern Banjir Cahal", (P.B.J.R., 1974). Gevraagd wordt: Door berekening de sedimentatie in het Oostelijk Banjir Kanaal te schatten naar grootte en naar plaats. Uitgaande van deze schatting moet gezocht worden naar de meest economische...
master thesis 1978
document
Ekkelenkamp, H.H.M. (author)
The study starts with possible working mechanisms of the tubes within the complex beach system. In addition, huge amounts of data are collected which tells us more about the sedimentology of the beach and soil structure. This data is used later on to study influenced beach processes and morphological change. For this study both the beach near...
master thesis 2012
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Eelkema, M. (author)
A promising new method for measuring sediment properties in the field is called MEDUSA RhoC. This device measures mud and sand content, sediment density, and water content in the field using Radiometric Sedimentology. The aim of this thesis is to investigate the accuracy and applicability of the MEDUSA RhoC system with its new components. This...
master thesis 2008
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Scheel, F. (author)
Tidal inlet systems, as found in the Dutch Wadden Sea, often feature both sand and mud. Due to differences in sediment properties, sand and mud particles respond different to identical forcing conditions, like short waves and tidal currents. Because of this, sand and mud can get transported to different locations. This process is referred to by...
master thesis 2012
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van den Bosch, B.A.P. (author)
Land reclamations in deltaric areas provide space to meet the demand for a safe place to live and work. Sand, a traditional filling material in some locations is becoming scarcer. An alternative filling material is mud. Mud consists of clay, silt, sand, organic material, water and gas. Therefore, it is a versatile material and difficult to...
master thesis 2016
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Visser, P. (author)
After decades of coastal erosion in the north-west area of the Island of Texel, the shore-normal `Eierlandse Dam` had been built in 1995. The dam, situated in the outer delta of the Eierlandse Gat tidal inlet, resulted in a remarkable short-term morphological development of the adjacent coast. Four years following completion of the dam, large...
master thesis 2014
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Behrens, H.W.A. (author), Zwols, A. (author)
Er is onderzoek gedaan naar de sedimentbeweging ten gevolge van golven en getijstromen voor de mond van het Haringvliet. Het vooronderzoek is alleen gedaan door A Zwols; "Een onderzoek naar de invloed van golven op de mond van het Haringenvliet". Behrens heeft ook een eigen vooronderzoek gedaan over spiraalstromen, maar deze is los upgeload bij...
master thesis 1968
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Ravenstijn, E. (author)
Bed degradation in a number of Dutch river branches, like the Bovenrijn, can cause various problems in the near future. At low waters the navigation depth at the non-erodible layer near Emmerich can become too small. Other problems could be lower ground water levels and stability of structures in and near the river, like groynes. To diminish...
master thesis 2009
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Nederbragt, G. (author)
This study focused on the possible relationship between seasonal variations of suspended sediment concentration (SSC) and diatom biomass. In order to determine whether a relationship exists, the effect of other parameters on these seasonal variations was also studied. This was accomplished to prevent the risk of finding a spurious relationship...
master thesis 2001
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Pieterse, J.J. (author)
Since the end of 2006 in the Netherlands a test is going on with a passive beach drainage system called Ecobeach. The system consists of vertical draining tubes with a length of 2.0 m called PEMs (Pressure Equalizing Modules). Under the surface level, every 100 m a row of PEMs is installed between the high and low waterline. Ecobeach is a Danish...
master thesis 2009
document
De Haan, S.C. (author)
Dit verslag is het resultaat van een onderzoek van enige sedimenttransportformules. Het is opgezet in opdracht van het T.O.W. (Toegepast Onderzoek Waterkeringen) als voorbereidend onderzoek voor de keuze van een formule, die het beste tot een sedimenttransportformule voor een combinatie van stroom en golven kan worden omgewerkt. Het onderzoek...
master thesis 1977
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Lely, M.S. (author)
Most estuarine, and some coastal, areas are characterised by large amounts of fine-grained cohesive and non-cohesive sediments. At sufficiently high concentrations, sediment transport in suspension may significantly influence the hydrodynamics. In sediment-laden flow with concentrations of approximately, stratification may occur due to a...
master thesis 2007
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Jacobs, C.E.J. (author), Dekker, S. (author)
This thesis presents the result of measurements of sediment concentration due to currents and irregular waves. The measurements were conducted from April to September 1999, in the 'Lange Speurwerk Goot', a large flume in the Laboratory of Fluid Mechanics. The goal of the experiments, which are part of the European Research Program SEDMOC, was to...
master thesis 2000
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Dijkman, J. (author)
Field measurements of suspended sediment transport are important with respect to the development and verification of theoretical models and with respect to the description of boundary conditions in morphological computations. A wide range of instruments has been developed to col1ect samples of the sediment in suspension in order to calculate the...
master thesis 1978
document
Nortier, R.J. (author)
The Wadden Sea is characterized by barrier islands separated by tidal inlets consisting of a system of inter-tidal flats and channels. It is an ecologically valuable area. Accelerated sea-level rise due to climate change combined with human interference which may cause land subsidence can have significant impact on the Wadden Sea system. A major...
master thesis 2004
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