Searched for: contributor%3A%22Mudde%2C+R.F.+%28mentor%29%22
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Scheijen, Nelleke (author)
Plastic pollution is a big problem all over the world. Every year more plastic is produced, a lot of plastic litter is mismanaged and enters the ocean. It’s important to know where these plastics accumulate. With this information the problem can be quantified and the plastic litter can be cleaned up. In this project, the transport of micro...
bachelor thesis 2018
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Meulman, E.A. (author)
This paper introduces two models. First, it introduces a model for geometric pressure loss in horizontal pipe junctions with arbitrary amounts of in-/outlets, under assumption of steady-state, incompressible, single phase flow and no wall friction. The model is shown to be in agreement with experimental data via another model. Second, the...
bachelor thesis 2016
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Beekers, J.P.A. (author)
In 2011, Royal Dutch Shell plc (Shell) took the final investment decision to develop the Prelude gas field using the world’s first Floating Liquefied Natural Gas (FLNG) facility. FLNG poses some new technical challenges. For example, as the vessel is moored to the seabed, it is subject to movements induced by waves, winds and tides. Therefore,...
master thesis 2016
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Toussaint, M.A. (author)
The polytropic model to describe air expansion, has been used for years to describe the behavior of surge vessels. In this thesis the alternative to describe this behavior, the Rational Heat Transfer (RHT) equation developed by Graze (1968), is extended with an estimation of all heat terms in surge vessels. The RHT model is compared to the poly-...
bachelor thesis 2015
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Buskermolen, M. (author)
One of the vital safety mechanisms in the reactor core of most nuclear power plants is the negative feedback from the core temperature on the power output. An increased temperature will reduce the power output of the reactor, 'automatically' cooling the it and preventing the nuclear reaction to spin out of control. For this reason, it is...
master thesis 2014
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Markensteijn, G.C. (author)
This thesis is about the beginning of a global tide model in DFlow-FM, a project by Deltares. The first focus lay on finding the best grid that can be used for this model. We tried to grids, a rotated lat-lon grid and a squarely grid with local refinement. After calculating the RMS-value it was found that the local refined grid gave the best...
bachelor thesis 2014
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Brouwer, G.C. (author)
master thesis 2011
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Vennema, F.J. (author)
The design of Micro Air Vehicles (mavs) is currently an area of rapid growth. To improve mavs, a better understanding of bird and insect aerodynamics is very helpful. In this study the time-dependent three-dimensional flow around an impulsively-started fruit-fly wing is investigated at a Reynolds number of 256 and a constant angle of attack (α =...
master thesis 2009
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Van Boxtel, P.W.M. (author)
master thesis 2005
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Van der Kleij, R.J.R. (author)
During tliis project tlie transfer of heat to a laminar flow inside a Primix static mixer has been investigated, using both experimental measurements and numerical simulations. This has been done for a high Prandtl number fiuid, in this case mineral oil. The Reynolds number of the flow in tlie mixer was between 7 and 18, while the Prandtl number...
master thesis 2004
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Deutz, L. (author)
Venturi flow meters are originall)' applied in single phase flows. Currently, Shell investigates their application in so-called 'wet gas' production mea,surement. Wet gas consists of a mixture of gas, condensate (light oil) and water. The liquids have been condensed from the gas, due to the pressure and temperature drop while producing. The flow...
master thesis 2003
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Jansz, S. (author)
In this research, a periodically kicked oscillator has been studied. It is known that periodically kicked oscillators show resonance and phase locking effects. The periodically kicked oscillator consists of a liquid filled U-tube, which is periodically fed with an air bubble (the 'kick') and is called the single U-tube. The single U-tube is also...
master thesis 2002
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Belt, R.J. (author)
There is ample evidence in literature that the insertion of flow obstacles in the coolant flow of a boiler postpones the f i lm dryout emergence on the heated surfaces. Specifically, the deposition of droplets forced by the obstacle is beheved to increase and is studied in this research. The two objectives of the present research are (i) to...
master thesis 2002
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Van Pijpen, C. (author)
In this research the pressure drop behavior of the Primix Static Mixer has been investigated for the Reynolds range of 1 to 1000. For this purpose numerical simulations were done, that were checked on grid dependency and sensitivity to different discretization schemes. Grid independent solutions were found for Reynolds values up to 400....
master thesis 2002
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Dorsman, R. (author)
The Kenics static mixer is investigated both experimentally and numerically in the range of Reynolds 10 - 1000. A setup with a two-element static mixer, which differs slightly from the original Kenics geometry, has been designed and built. The mixing section is made optically accessible by using a glass measurement section, including glass...
master thesis 2001
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Pols, J. (author)
Airlift loop reactors are frequently applied in the chemical and biological industry. They are made of two sections interconnected at the top and bottom, with an ungassed downcomer and a gassed riser. In this type of reactor the density-difference between the sections supplies the needed driving force needed for the liquid circulation. Numerical...
master thesis 2001
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Hartmann, H. (author)
Flashing induced instabilities in a BWR test-facility (CIRCUS) have been investigated. A steady-state model of the thermo-hydraulic behavior of a simplified natural circulation cooled BWR setup has been derived. An asymmetric power distribution in the core leads to asymmetric boifing boundaries in the core and small differences in flow-rate in...
master thesis 2001
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Nievaart, V.A. (author)
Shell investigates the application of a Venturi as a flow meter in wet-gas production. Wet gas consists of gas, oil and small amounts of water and is therefore a multiphase mixture. At this moment, a reliable data-base as to turbulent flow properties in Venturi flow meters is not available, neither in single phase nor in multiphase.-However,...
master thesis 2000
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Bougie, H.J.T. (author)
Electrical capacitance tomography (ECT) is a non-intrusive measurement technique for estimating the spatial distribution of different phases in a cross-section. Between twelve electrodes, positioned around circumference of the cross-section, an electric field is created, resulting in 66 capacitances between the electrodes. The 66 capacitances...
master thesis 2000
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Leentvaar, C.C.W. (author)
Air-lift-loops zijn reactoren die veel gebruikt worden in de biotechnologie. De reactoren worden gebruikt om reacties met zuurstof te laten plaatsvinden. De meest belangrijke eigenschap van een dergelijke reactor, is het circulerende karakter op gang gebracht en gehouden door de gastoevoer. Als de stroming eenmaal ingesteld is, zijn de...
master thesis 2000
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