Searched for: subject%3A%22physical%255C+modeling%22
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Reuber, J. (author)
The subject of this master thesis is to present the processes taking place at the erosion of a fluid mud layer due to entrainment, to carry out experiments in an annular flume and compare the results of these experiments with a numerical model, which has been elaborated at the TU Delft. The report can be devided into five parts: physical and...
master thesis 1994
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Duinmeijer, S.P.A. (author)
Nowadays flooding because of a dike breach can be simulated with high accuracy by use of computer models. Delft FLS, which stands for DELFT Flooding System, developed by WL - Delft Hydraulics, is such a model. The hydrodynamic processes occurring during a flooding are complex, for example moving hydraulic jumps and propagating bores. The...
master thesis 2002
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De Haan, C. (author)
Voor het ontwerp van rioolstelsels wordt gebruik gemaakt van hydrodynamische modellen. Met deze modellen worden stelsels zo ontworpen dat alleen bij buien die eens per 2 of 5 jaar optreden niet al het water wordt afgevoerd. Door deze modellen wordt de waterbeweging in de riolering goed beschreven en het is goed mogelijk om te bepalen hoe vaak er...
master thesis 2002
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Van Baaren, P.F.J. (author)
The dune erosion prediction method presently used in the safety assessment of the Dutch dune coast was developed for situations with wave periods up to 12 seconds. New insights predict that situations with wave periods larger than 12 seconds can be expected. Preliminary analyses of the potential influence of larger wave periods on dune erosion...
master thesis 2007
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Te Slaa, S. (author)
Coastal erosion is a serious problem in several coastal areas in Vietnam. One of these areas is the district of Hai Hau, located in Nam Dinh province. This district suffers from severe coastal erosion, the coastline has been retreating for more than 100 years. Efforts have been made to stop this erosion which resulted in the construction of...
master thesis 2008
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Mulders, P.H.M. (author)
During the construction of breakwaters contractors often encounter undesired reshaping of exposed core material. This reshaping is comparable to the deformation process of berm breakwaters in which the outer profile reshapes into a more stable s-curve. In the case of oblique waves this deformation is enhanced by a longshore transport of stones...
master thesis 2010
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Lioutas, A.C. (author)
The overtopping empirical formulas calculate the discharge only at the top of the crest of a coastal protection structure. On the other hand, the tolerable overtopping discharges are defined at certain points behind the crest where the total overtopping is reduced. The scope of this thesis is to find an empirical formula to describe the...
master thesis 2010
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Keen, A.S. (author)
Mobile bed scaling (for scales smaller than 1:1) does not allow for ideal similarity between all nondimensional parameters. This leads to an exaggerated presence of one process over another or the development of scale effects. The complexity of the surf zone makes it especially difficult to separate and quantify the effect of sediment scaling on...
master thesis 2011
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Dilaveraki, I. (author)
The thesis is an exploration of woven textile systems and their translation from the microscale of textures to the macroscale of structures. The purpose is to define their potential use in the building environment as structural skins based on the integration of material properties, structural and daylight criteria. The design of a pavilion,...
master thesis 2012
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Kolijn, D.J. (author)
The following research focuses on artificial underwater structures (a.k.a. artificial reefs) in a coral reef environment to mitigate the natural and anthropogenic pressures which reef systems are increasingly facing worldwide. The research question is stated as: “Establishing a method to determine if a multipurpose artificial underwater...
master thesis 2014
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Van der Linden, T.I. (author)
In this thesis research is presented on the influence of multiple thin soft layers on the cone resistance and an attempt has been made to develop a correction factor from numerical and physical models. The presence of thin layers causes difficulties with determination of the liquefaction potential of sand deposits containing thin clay layers...
master thesis 2016
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Pozo Andrade, C.E. (author)
The increase in complexity of geotechnical problems demanded for more advanced physical modelling and instrumentation approaches. Physical modelling under normal gravity (1g) or in centrifuge has been an important instrument to overcome various scale issues that govern soil related experiments. However, limitations in the size, especially for...
master thesis 2016
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Kyparissis, A. (author)
Landfall operations are conducted for connecting an offshore pipeline with process facilities on the shore. During a landfall operation an offshore pipeline is pulled by means of a steel wire rope on the shore with a velocity of 7 cm/s. During this process the steel wire rope interacts with the soil located on the seabed and on the shore....
master thesis 2016
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Korevaar, T.J.A. (author)
Navigation locks are used to transport vessels between waterways with different water levels. In the nearby future many navigation locks will be renovated or replaced. During the design of a new lock still some unknown factors are encountered. One of these factors is the vibration of the valve. The valve is part of the filling and emptying...
master thesis 2016
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Jiménez Moreno, Alba (author)
Nowadays, the use of concrete armour units on rubble mound breakwaters designs has become a common practice. Concrete armour units can be placed in a single layer system or in a double layer system and can its placement can be either random or uniform. Recently, Delta Marine Consultants have designed a new armour unit called Xbloc+. This new...
master thesis 2017
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Rada Mora, Belen (author)
In recent years, the use of Xbloc units has increased exponentially. However, the placement of this unit is not always done as randomly as it should be and consequently, the stability of the armor is affected. In order to overcome this problem, Delta Marine Consultants is developing a new armor unit called Xbloc+ that has a regular placement. In...
master thesis 2017
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de Almeida Sousa, Ermano (author)
Coastal areas around the world have attracted settlements and human activities since the early stages of the history until nowadays. This has introduced continuous modifications to the natural characteristics of these coastal regions by means of coastal structures and engineering interventions. The design of such coastal structures has evolved...
master thesis 2017
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Marinov, Krasimir (author)
Low-lying countries such as Belgium and the Netherlands are naturally susceptible to overtopping wave attacks. Coastal regions are therefore facing the threat of such events causing damage to dike-positioned structures and buildings. Research in this filed is often conducted using scaled-down 2D hydraulic physical models, which introduces so...
master thesis 2017
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Rahadian, Rheza (author)
Watertightness and leakage prevention is crucial in every tunnel joint design. Immersed tunnels have been utilizing the Gina-Omega gasket solution since the 1960s to prevent leakage from occurring. However, after almost 50 years of service life, leakages were detected in the immersion joints, which leads to an investigation into the source of...
master thesis 2017
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van Zeben, Joris (author)
During the last decade, the focus of offshore activities have shifted from oil and gas production to offshore wind farm creation to reach the clean energy targets set by different nations. Foundation requirements for offshore structures have shifted because of this. The monolithic nature of windmills allows the use of a single open-ended steel...
master thesis 2017
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