Searched for: mods_note_programme_s:"Environmental%5C+Fluid%5C+Dynamics"
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van der Lugt, Marlies (author)
Waves in coastal waters play a role in forecasting storm conditions, as boundary conditions for the assessment of coastal risk and in coastal structure design. Assessment of their impact can be made through numerical modeling. In a forecasting context, the CPU time of the wave model is decisive in its suitability. Recent years wave model...
master thesis 2017
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Maljaars, J.M. (author)
Hybrid particle-mesh methods attempt to combine the advantages of Eulerian and Lagrangian methods: Lagrangian particles are used for the advection, whereas a Eulerian background grid is used for computing the particle interactions. Such a hybrid approach is expected to have several benefits when simulating flows involving free surfaces or...
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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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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Van der Meer, A.W. (author)
In the dimensional averaged numerical models, that are used for practicle purposes, there need to be accounted for three-dimensional processes. Amongst others a bank shear stress parameterization need to be incorperated. This master thesis focusses on the outer-bank shear stress in order to obtain a parameterization for the outer-bank shear...
master thesis 2015
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Döbken, J.W. (author)
Aquatic vegetation, found in coastal waters and inter tidal areas, has important features for hydraulic engineering solutions, including sedimentation and stabilization of the bed. The increasing demand to predict wave hydrodynamics with aquatic vegetation asks for insight in the mechanisms and improved model methods. Striving to a more...
master thesis 2015
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Cats, G.H. (author)
The Dutch Flood Defense Act prescribes the assessment of the safety level of Dutch primary sea and flood defenses every six years. To asses if the required level of security of the sea and flood defenses is guaranteed, first the Hydraulic Boundary Conditions (HBC) which the sea and flood defenses are exposed to, have to be determined. At the...
master thesis 2014
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Steenstra, R.S. (author)
For the design of granular bed protections often a stability parameter is used. The stability parameter represents the forces that are acting on the stones and is used to predict the response of the bed to these forces. Existing parameters are often derived for a limited range of application. When the parameter is used outside this range, the...
master thesis 2014
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Fuhrhop, H. (author)
The Mississippi River is one of the most engineered rivers in the world. Levees, bank revetments and training dikes ensure navigability and safety against ?ooding. Construction of dams in the upstream branches led to a decay in sediment supply of 70% during the last 100 years. Due to man-made constrictions, more sediment is spilled out in the...
master thesis 2013
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Kruijt, M. (author)
Groynes are commonly used in the major rivers in the Netherlands. They confine the flow of the river to a main channel but also act as resistance element once submerged and in that way influence the stage discharge relationship of the river. Several formulas exist describing groynes as a drag resistance. Another possible way of determining their...
master thesis 2013
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Kalf, P.N.M. (author)
This research focusses on the behaviour of fine particles which pass through the armour layer of bed material of the upper and middle reaches of a river. When the fine particles are entrained in the armour layer, it is described as ‘winnowing’ or vertical entrainment. A river bed generally consists of a coarse surface layer, which is the...
master thesis 2013
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Radermacher, M. (author)
Dredging and reclamation works are known to generate significant amounts of turbidity. In most coastal zones around the world, the resulting clouds of suspended fine sediment bring along environmental risks. Dredging contractors take mitigating measures to prevent free spreading of turbidity, which is usually also demanded by their clients and...
master thesis 2013
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Ren, Y. (author)
The main objective of the study is to understand the effects of breach properties (e.g. the top width, the depth and the bottom width of the breach) on the breach flow. The breach flow was modeled as flow over a compound broad-crested weir. A laboratory experiment was carried out with a fixed weir model in a flume. Five cases with different...
master thesis 2012
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Rijnsdorp, D.P. (author)
Infragravity waves are a common feature in the nearshore wave field and have a significant impact on numerous coastal processes. It is therefore important to accurately predict infragravity wave conditions at a given location. However, analytical relations do not exist with which to make such predictions and one has to rely on numerical models....
master thesis 2011
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Van der Boon, C.M. (author)
Shell is developing a floating liquefied natural gas (FLNG) facility to extract and process natural gas in the Browse Basin on the North West Shelf of Australia. This shelf break area is known for its strong tidal currents and year-round stratification. Tidal currents transporting stratified water over steep bathymetry can generate large...
master thesis 2011
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Schmedding, J.P.P. (author)
The focus is on the numerical flow model TRIWAQ. It is developed as a hydrostatic free-surface flow model, which is currently being used by the KNMI and Rijkswaterstaat for predictions of water levels in the North Sea and Dutch estuaries. TRIWAQ has successfully been extended to the realm of nonhydrostatic modeling, TRIWAQ-NH, this allows the...
master thesis 2011
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Van Wiechen, J.J.J. (author)
This Master Thesis presents a numerical model analysis of the response of the Rhine ROFI on wind direction and speed. The aim of this study is to gain a further insight in the physical processes of the Rhine ROFI. Previous work on the Rhine ROFI focused mostly on tidal effects (straining and mixing) and inertial motions (earth rotation). Other...
master thesis 2011
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Van den Bosch, I.C. (author)
Wave fields in the close vicinity of a coastal structure can be very complex, this is especially the case during extreme storm conditions and for complex geometries. There is a growing interest for numerical simulation tools capable of predicting in detail the complex hydrodynamic loads due to waves and currents and its effect at structures. In...
master thesis 2010
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Jacobs, R.P.M. (author)
The nearshore zone is an active zone that can be quite inhospitable to humans due to violent wave breaking and strong rip currents. Rip currents are shore normal jet-like currents that typically extend from near the shoreline out past the line of breaking waves. Observations have concluded that a rip current system generally consists of 4 parts....
master thesis 2010
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Den Bieman, J. (author)
Tijdens experimenten in een stroomgoot, waarvan de bodem grotendeels bel bachelor thesis 2009
Searched for: mods_note_programme_s:"Environmental%5C+Fluid%5C+Dynamics"
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