Searched for: department:"Hydraulic"
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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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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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Berkhout, B. (author)
River bed degradation is sometimes counteracted with nourishment of sediment material. Numerical models — which include Hirano’s sediment continuity model for mixed-size sediment — can be used to predict the transport of different sediment fractions (the waves due to spatial variations in the grain size distribution of the bed material are here...
master thesis 2015
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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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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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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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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
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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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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
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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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Ris, R.C. (author)
In het kader van onderzoek naar het mechanisme van het opwoelen van sediment onder golven wordt in dit onderzoek een eerste aanzet gegeven voor een beschrijving van de waterbeweging ter plaatse van een bodemribbel met een deeltjesmodel. Het rapport bevat een overzicht van de theorie die de waterbeweging beschrijft, de Vortex methoden en in het...
master thesis 1992
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De Vletter, J. (author)
The Hooghly river is situated in West Bengal, a Northeastem state of India. The capital of West Bengal is Calcutta. (See figure 1). The discharge from all the eastem and western tributaries, and from the direct head from the Ganga, flows into the Bay of Bengal through the Hooghly estuary. The Hooghly delta is part of the Indo-Gangetic delta. The...
master thesis 1992
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Dongeren, A. (author)
In this report, a model is derived which simulates the behavior of channels and flats in a tidal basin after a change in the exogenous parameters. In chapter 1, a short introduction is given about the context in which this research has been done. Chapter 2 discusses the general features of the tidal inlet system as well as its formation and...
master thesis 1992
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Van der Laan, A.K.J. (author)
In de discussienota 'Kustverdediging na 1990', gepresenteerd in mei 1989, somt Rijkswaterstaat vier mogelijkheden op om het hoofd te bieden aan de verdere afkalving van strand en duin. Deze vier alternatieven zijn: terugtrekken, selectief handhaven, de kustlijn handhaven zoals die er op dit ogenblik bij ligt en het aanvullende alternatief ...
master thesis 1990
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Moerwanto, A.S. (author)
Sediment transported by natural stream flow has often presented the irrigation and hydropower plant designer with major problems, and measures for solving the sediment problems have been proposed. Most of the proposed sediment exclusion measures have been developed based on certain basic hydraulic principles and experiences gained from field...
master thesis 1990
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Tolman, F. (author)
Het onderhavige onderzoek bestaat in hoofdzaak uit drie gedeelten: - schematisatie van de rivier - berekeningen met uniform bodemmateriaal -berekeningen met niet-uniform bodemmateriaal Getracht is de schematisatie systematisch uit te voeren. Uitgangspunt zijn de basisvergelijkingen voor de beweging en behoud van water en sediment. De...
master thesis 1987
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Steetzel, H.J. (author)
Het (uiteindelijke) doel van het onderzoek is te komen tot een aanzet tot een model dat de concentratieverdeling in de bodemlaag als functie van de hydraulische (en geometrische) omstandigheden beschrijft. De golfbeweging uit zich vlak boven de bodem als een (bij benadering) horizontale oscillerende waterbeweging boven een zandbed. Het huidige...
master thesis 1984
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Van Meerendonk, E. (author), Van Roermund, A.J.G.M. (author)
Ten behoeve van het opstellen van de randvoorwaarden bij het ontwerp van onderzeese pijpleidingen is het noodzakelijk het gedrag van de zeebodem in de directe omgeving van de leiding onder invloed van stroom, golven en combinaties daarvan te kennen. Dit verschijnsel is dermate complex, dat het nodig is het onderzoek ernaar in meerdere...
master thesis 1981
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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
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Van Wieringen, H.S.J. (author)
Het is tot op heden niet mogelijk gebleken om het verloop van het ontgrondingsproces in een ontgrondingskuil, langs theoretische weg, tot een bevredigende oplossing te brengen. Met name de berekening van het sedimenttransport, indien de snelheden van de vloeistof in de ontgrondingskuil gegeven zijn, brengt nog grote moeilijkheden teweeg. Doel...
master thesis 1978
Searched for: department:"Hydraulic"
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