Searched for: department:"Hydraulic"
(1 - 15 of 15)
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Ligthart, D. (author)
The Ayeyarwady River is a river with large hydrological variations and an abundance of relatively fine non-cohesive sediment, causing the dynamic behaviour of the river with fast shifting channels. This dynamic behaviour, together with the large hydrological variations, is the source of a frequently flooding river with a moderate navigability....
master thesis 2017
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Smits, B.P. (author)
Due to the removal of mangrove forests, the coastal zone of Demak district has suffered from severe erosion. One of the proposed solutions to restore the sediment balance and encourage mangrove re-establishment, is the construction of semi-permeable dams. This study aims to optimise the design of such structures. A 2DH site-specific model was...
master thesis 2016
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Kurniawan, V. (author)
The existence of tidal flat is beneficial for human beings, but it faces the risk of being vanished by continuous intervention, either by nature or human. Therefore, researches about tidal-flat’s morphodynamics are required for the sake of its preservation. Here, the subject of the research is the Kapellebank tidal flat in the Westerschelde...
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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Mol, M. (author)
In this study, an improved error metric for morphodynamic models is introduced. Current error metrics, like the classical (Root) Mean Squared Error (RMSE), assume that predictions can be properly validated against observations by regarding the point-wise difference in bed level. This analysis inherently has the problem that phase differences of...
master thesis 2015
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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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Broekema, Y.B. (author)
In this study a modelling approach was investigated that takes into account the effect of short wave grouping on long wave motions, calculating sediment transport and morphology with multiple fractions and a layered bed stratigraphy. After extensive testing and validating this model using data collected in a wave flume in Hannover this model was...
master thesis 2015
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Arailopoulos, I. (author)
Depth-averaged morphological computations using Delft3D tend to produce ‘strange’, results for river bends when the sediment transport formulas of Van Rijn are used. Even pools in inner bend regions and bars in outer bend regions can result from the model. The objective of the present thesis is to identify the cause of the problem and propose...
master thesis 2014
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Jiao, J. (author)
The Dutch Wadden Sea is consisting of 7 tidal inlet systems separated by sandy barrier islands. The general morphodynamics and hydrodynamics of tidal inlets are relatively well understood, but the detailed interactions remain a prominent research interest. In this study, process-based computer models are employed as a tool to investigate the...
master thesis 2014
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Bodde, W.P. (author)
Coral reefs are highly valuable structures in many respects and it is increasingly important to understand hydrodynamics and morphodynamics around reefs to be able to better protect them and their hinterland. Flume experiments were performed on a scaled fringing reef in the laboratory facilities of Deltares in Delft. The objective of this thesis...
master thesis 2013
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Post, S. (author)
The Colombian government aims to establish a connection that bridges the Atlantic Ocean and the Pacific Ocean. The new connection will largely take place on the current Atrato River, which has not yet been upgraded for a more extensive use of navigation in the near future. A bottleneck in the river is the delta area. Without structural dredging...
master thesis 2011
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França de Abreu, C. (author)
The objective of this study is to analyze and simulate the behavior of a non-equilibrium profile in a storm event, in particular, the Maasvlakte-2 (MV2). The MV2 is a large reclamation project at which both soft and hard sea-defenses are applied. Soft sea-defenses exhibit steep initial profiles during construction. Understanding how this sea...
master thesis 2010
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Blacquière, A.R. (author)
In het kader van een afstudeerproject is een studie verricht naar de morfologische ontwikkeling van de Westerschelde sinds 1650 volgens eendimensionale rekenmodellen. De validatie van dit soort modellen is namelijk een probleem. Van de Westerschelde bestaat weliswaar een groot aantal meerdimensionale modellen, maar door de grote hoeveelheid aan...
master thesis 1998
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Van Marion, B.B. (author)
The subject of this thesis is the sediment exchange between channels and flats in tidal inlets. This topic is part of a research scheme which must yield more insight into the dynamic equilibrium of tidal inlets. An important aspect of the sediment exchange is the drying and flooding of the flats during the tide. The oscillating water level gives...
master thesis 1997
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Janssen, P.C. (author)
Since 1992 nearshore hydrodynamics and coastal morphology have been studied from ARGUS video images, collected every hour at eight beach locations worldwide. Identification of the waterline from these images would enable us to obtain an impression of the intertidal beach bathymetry, and hence to monitor intertidal beach morphodynamics. In this...
master thesis 1997
Searched for: department:"Hydraulic"
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