Searched for: subject%3A%22Shallow%255C%252Bwater%22
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ten Napel, Zoë (author)
Tidal flats are important coastal ecosystems that support a diverse range of plants and animals. Accurate prediction of water motion over tidal flats is crucial for the design of coastal infrastructure, hazard assessment, environmental management and oceanography research. Defina [1] derived a new set of shallow water equations that allow for...
master thesis 2023
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Draisma, Max (author)
Understanding the factors that drive extreme water levels is key to an accurate assessment of flood hazard. The city of Venice has always been affected by flooding due to extreme water levels. In this study, we examine the factors driving and influencing extreme water levels in the Venice lagoon, aiming at deriving accurate extreme water level...
master thesis 2023
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Le Grand, Oscar (author)
Sea level rise will increase the risk of flooding in coastal areas. This poses a risk to the coastal protection as well as rivers and lakes close to the coast. Solutions are needed to cope with this threat. The past decade, nature based solutions have gained significant interest. One of these solutions could be sandy foreshores. Due to the use...
master thesis 2022
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Scheurwater, Bart (author)
Witteveen+Bos as part of construction consortium Nautilus, has prepared the design of a sea defence system in Middelkerke. The very shallow water conditions (h/Hm0 = 0.3) and complex geometry of the structure, i.e. a high berm and stepped revetment, caused uncertainties in the usage of the empirical equations from the EurOtop Manual (2018) for...
master thesis 2022
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Hartgring, Sebastian (author)
During the calibration of SWAN for shallow water lakes in the Netherlands, problems have been encountered. Especially the emergence of an unnatural, secondary peak in the low frequency part of the energy density spectrum poses problems. Therefore, this investigation aims to address the nonlinear shallow water source terms in SWAN that may...
student report 2022
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Yustisi Ardhitasari Lumban Gaol, Yustisi (author)
Bathymetric depth for shallow water regions is essential for coastal management and research. The measurements using echo sounding and LiDAR leave data gaps because vessels cannot reach nearshore waters or the green laser unable to penetrate specific areas. Satellite-Derived Bathymetry (SDB) is an alternative to extract shallow water depths that...
master thesis 2021
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Nuij, Gert-Jan (author)
The CCNR will ensure that in 2050 inland ships do not emit any emissions. A PEM fuel cell system running on pure hydrogen could be a solution. However, the new system imposes some difficulties on the design of the inland ship. A calculation model is created to evaluate inland ships with this system and research these difficulties. The...
master thesis 2021
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Vos, Bart (author)
In recent years many automatic differentiable programming frameworks have been developed in which numerical programs can be differentiated through automatic differentiation (AD). Examples of these frameworks are Theano, TensorFlow and Pytorch. These frameworks are widely used in Machine Learning. AD also finds applications in the field of...
bachelor thesis 2021
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Buwalda, Floris (author)
In the past 15 years the field of general purpose computing on graphics processing units, or GPUs, has become well developed and the practice is becoming more mainstream. Computational demands of simulation software are continuously increasing. As such for many applications traditionally computed on the central processing unit the question...
master thesis 2020
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van Staalduinen, Inge (author)
From shallow to deep water, from the well to the ship, from the offshore field to shore or between countries, many kilometres of offshore pipelines for transportation of hydrocarbons (oil and gas) have been installed over the last decades. Allseas’ Tog Mor is a shallow water pipelay barge capable of laying pipes up to a water depth of 25 meters....
master thesis 2019
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Peeters, Lotte (author)
In this thesis, a coupled hydrodynamic, morphodynamic and plant growth model is reviewed. The goal of this model is to simulate plant colonization and channel formation on an initially flat or ascending substrate in a tidal landscape. To be able to simulate these biophysical processes on a small enough scale (while still using the same spatial...
master thesis 2018
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van Vuuren, Frits (author)
The Poineering Spirit is a heavy lift vessel that can lift offshore platforms in a single lift. Due to the waves, the vessel moves with respect to the platform. To make sure the vessel does not hit the platform, a motion compensation system is installed on the Pioneering Spirit. The maximum allowable vessel motions during<br/>the operation are...
master thesis 2018
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Dicker, Jeroen (author)
Beach nourishments or sand replenishments are applied by the use of pipelines or the rainbow method. Replenished sand is then moved and levelled by bulldozers. This is a passive approach to process the outflow of material. The land based equipment is dependent from tides and water levels, and significant effort is required to install and...
master thesis 2017
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Stovers, M.J.P. (author)
Gravity currents are common around the world, consider for instance avalanches and pyroclastic flows. The kind of gravity currents that this research focuses on occur below the water surface. During dredging operations soil is cut and transported, during many of these processes sediment is introduced into the environment. Consider for instance...
master thesis 2016
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Sri Paravastu, R.K. (author)
Offshore pipeline installation is limited by pipeline integrity during the laying process. Pipeline integrity is evaluated with the help of buckling checks, which help determining the feasibility of pipeline installation for a given sea condition. The operational limit of pipeline installation is determined during project preparation, by...
master thesis 2016
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Helsloot, T.C. (author)
Due to increasing marine traffic intensity on inland waterways the interaction between ships and banks is becoming more of a problem. Bank effects make ship manoeuvring more difficult and rivers need to be protected against ship-induced currents and waves. This thesis contributes to the development of a new method that simulates these ship-bank...
master thesis 2016
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Guo, L. (author)
The main goal of this project is to predict the in uence of non-uniform basin depths on the stability of single inlet systems. This is achieved by making use of Escoffier's principle, which poses a relationship between the relative water flow velocity in an inlet and the rate of change of its cross-sectional area. To this end, a thorough...
bachelor thesis 2016
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Shrivastava, M. (author)
master thesis 2015
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Ambrozic, M. (author)
Forecast models often depend on unknown parameters, such as model initial and boundary conditions, or other tunable parameters not necessarily having any physical meaning. Calibration of these parameters to minimize errors between forecasted and observed states is called data assimilation. A common approach in this context are variational...
master thesis 2013
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Rotteveel, E. (author)
Manoeuvring simulations can be of good use in determining whether an inland ship may be allowed access to a certain channel/river or not. The SURSIM mathematical model is able to predict the necessary manoeuvres and can therefore be used to determine the acceptance of ships on fairways. However, the SURSIM program is mostly developed for use...
master thesis 2013
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