Searched for: subject:"Flow"
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Leichsenring, Maaike (author)
Ocean Thermal Energy Conversion (OTEC) uses the temperature difference between the surface and deep layers to generate electricity. The temperatures in the ocean hardly vary between day and night or between the seasons, which ensures a very constant energy production with OTEC. In order for OTEC to compete with the current forms of energy...
master thesis 2019
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Eulderink, Juliette (author)
Hydrological modifications to the natural flow regime through the regulation of a river threaten the integrity of river ecosystems. In Myanmar, the exponentially growing hydropower sector poses a threat to the ecohydrology of some of the last large free-flowing rivers in the world. This study investigates to what extent the natural flow regime...
master thesis 2019
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Fikriyan, Rafil (author)
The phenomenon of lateral migration of neutrally buoyant rigid spheres is studied experimentally for Poiseuille Flow. The study relied on the particle migration technique to capture the distribution of particles radial position at different flow parameters. In this thesis, the varying experimental parameters are flow Reynolds number and particle...
master thesis 2019
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Viet, Rob (author)
The Flying V is a concept proposed and patented by Benad and Airbus Operations GmbH, which is a flying wing aircraft in the shape of the letter V. Multiple researches already showed promising results, with a 25% increased lift over drag ratio compared to conventional aircraft like the Airbus A350-900. Before research of sub-scale flight testing...
master thesis 2019
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van der Pol, Justus (author)
In the oil and gas industry the occurrence of slug flow in flowlines and risers can cause operational problems. Such flowline-riser systems are used to transport the oil and/or gas from the location of the wells to a production platform, where the fluids might be separated into single phases. Slug flow conditions imposefluctuations in the...
master thesis 2019
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Altenburg, Luuk (author)
Sedimentation of particle suspensions is a relevant process to a variety of applications, such as the reclamation of land and chemical engineering systems. Direct numerical simulations of the settling of a single, two and multiple solid spheres under gravity in a square duct have been performed. The simulations involve 4 different Galileo...
master thesis 2019
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Kwakkenbos, Jesse (author)
Coal silos are often used in areas where space is scarce, or because of environmental issues. Enclosed storage reduces the impact on the environment. If enclosed storage is used, different properties are important. The material characteristics can be split up in basic properties (moisture, angle of repose, etc.) and physical properties (shape,...
master thesis 2019
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Blom, Jari (author)
Vision based control allows Micro Air Vehicles (MAV) to move autonomously in GPS-denied environments, for example in indoor applications. An open issue in this field is landing on an unknown platform. The difficulty in visual control w.r.t. such an unknown platform, is a lack of scale. Without knowledge of the scale of offsets and object sizes ...
master thesis 2019
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Fisser, Joël (author)
Mimetic discretisation techniques are a growing field in computational physics research. Among these techniques, the recently developed mimetic spectral element method allows for exact discretisation of metric independent relations. This has been proven numerically in various mixed formulations, for instance the mixed velocity-vorticity-pressure...
master thesis 2019
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van Pelt, Timo (author)
This project proposes a series of experiments that involve plasma synthetic jet actuators. The first experiment will perform a jet characterisation experiment that will research the effect of orifice geometry on the overall performance of the actuator. The second experiment will built upon the first experiment and will use a plasma synthetic jet...
master thesis 2019
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Luken, Lodewijk (author)
The current take-make-dispose economy, resulting in resource pressure and environmental problems, calls for circular economics. Islands are perfect living laboratories, because of their clearly defined boundaries and vulnerability to external factors. In this graduation Project, Ilha de Paquetá in Rio de Janeiro, Brazil, is taken as a case study...
master thesis 2019
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Lyu, Yixin (author)
Parkstad is now facing urban shrinkage. The development of biomass probably can provide a change to this region. Therme Biomass, as a power station, will produce energy and resource to Parkstad. Integration with bath center will attract guests to come here and know more knowledge about this renewable energy and technologies. In this case, the...
master thesis 2019
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Zhu, Yuge (author)
One-third of the food produced is wasted while the demand for food is increasing worldwide. The food supply in the consumption phase is not only the last chain but also wastes the most. Yet the majority of residents in the Netherlands have still underestimated this number. Therefore, the design aims at recycling and reusing the food waste on the...
master thesis 2019
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van Weerdenburg, Roy (author)
Considering scenarios of sea level rise, the sediment budget of the Wadden Sea is of interest for both coastal safety and for the maintenance of values of this unique environment. Sand nourishments are foreseen on the ebb-tidal deltas of the Wadden Sea to increase the sediment budget, which requires us to predict the fate of the nourishment....
master thesis 2019
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Pols, Daniel (author)
In solving two-phase flows, the location of the interface between the phases is necessary to handle interface jump conditions when solving the Navier-Stokes equation. Current interface capturing and advection methods, however, suffer from various issues. The level set method uses the signed distance to the interface and the interface being the...
master thesis 2019
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van Rijsingen, Mart (author)
The transport sector is making a significant contribution to the global CO2 emissions causing Global Warming. A large portion of this is caused by heavy-duty vehicles like tractor semi-trailer combinations. Since tractor semi-trailer combinations are often operated at relatively high speeds for long periods of time their fuel consumption, and...
master thesis 2018
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SAXONI, IOANNA (author)
Coastal regions are more and more affected by changes in water levels, storm patterns etc. owing to climate change. Nourishments and other human interventions constitute common practice in order to maintain and secure these areas. However, many aspects, especially the hydrodynamics, are not yet fully understood due to the complexity of the...
master thesis 2018
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van der Grinten, Juul (author)
The number of sustainable electrical energy sources is growing rapidly. These energy sources have a fluctuating and irregular pattern over time. Therefore, electricity storage is needed in the nearby future. The Concentration Gradient Flow Battery (CGFB), which uses the Blue Energy technology as a storage mechanism, has a promising market...
master thesis 2018
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Knops, David (author)
In this thesis, the effects of the foreshore and heterogeneities of the subsoil on the piping safety analysis are determined. The effects are searched for by use of the numerical model D-Geo Flow. The results of this research give more insights in when and how a foreshore has to be included in the safety analysis. It is also concluded that...
master thesis 2018
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Gerlach, Simon (author)
As soil behaviour is stress-dependent, a centrifuge model with tilting sample box was developed to generate liquefaction flow slides at higher confining stresses. The design and experimental set-up were based on the large liquefaction tank (de Jager et al., 2017). Fluidisation was used as sample preparation technique to produce a saturated,...
master thesis 2018
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