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Oostra, A.J. (author)
Incremental bridge launching is one of the many ways in which a bridge can be constructed. In The Netherlands this method is not often used. This may be explained by the fact, that there are not many suitable locations for application of this method. Incremental bridge launching is profitable for long bridges and can only be used for straight...
master thesis 2015
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Moerman, R.A. (author)
Goal of the graduation project is to make a market proposition for an existing innovative product, the FysioPal. This is done by researching the internal and external market environment as well as the stakeholders that can be influencing in the business model network of the product-service FysioPal. By combining the insights found internal as...
master thesis 2015
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Abstract Influence of small-scale turbulence on cloud droplets spatial distribution was analyzed by examination of motion of inertial droplets in a simple model of a vortex tube aligned at arbitrary angle to gravity force. Both analytical calculations and numerical simulations demonstrated characteristic features of the motion such as...
conference paper 2015
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We investigate the double diffusive convection between two parallel plates with either no-slip or free-slip boundary conditions. Direct numerical simulations have been conducted systematically for a series of control parameters. Salt fingers can be observed for both boundary conditions and all parameters explored. Compared to the no-slip case,...
conference paper 2015
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The interaction of a normal shock with isotropic turbulence (IT) represents a basic problem for studying some of the phenomena associated with high speed flows, such as hypersonic flight, supersonic combustion and Inertial Confinement Fusion (ICF). In general, in practical applications, the shock width is much smaller than the turbulence scales...
conference paper 2015
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The turbulent flow over periodic hills was measured near to the wall, using planar Particle-Image-Velocimetry (PIV) at high spatial resolution. Our focus is on the near wall turbulence structure on the windward slope of the hill. For large-eddy simulation (LES) we suspect that, if this was not predicted accurately, it affects the prediction of...
conference paper 2015
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Simbolon, M.R. (author)
Previous study in Structural Integrity and Composite group showed that creepforming Dyneema fiber into hemispherical helmet preform is indeed possible. However, the set-up in conventional set-up was complex and a long time was required to generate uniform temperature across the material. This thesis will investigate the possibility of using...
master thesis 2015
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A streamwise magnetic field leads to turbulent drag reduction in channel flow of a conducting liquid due to the selective Joule damping of certain flow structures. Near the walls, the turbulent mean velocity profile retains the logarithmic layer but the von Karman constant decreases with increasing magnetic field strength. In the outer region,...
conference paper 2015
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Aalbers, R.R.D. (author)
The use of renewable energy solutions in generating electricity constitutes an interesting option in small island regions. Current energy supply generally comes from fossil fuels and besides high costs this also contributes to high CO2 emissions. Ocean thermal energy conversion (OTEC) is a technology that potentially could be implemented. It...
master thesis 2015
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Highly porous materials are found in various industrial applications and environmental flows. In previous studies it was found that a turbulent flow along a highly porous wall experiences a higher skin friction as compared to a solid wall with similar surface roughness when the so-called permeability Reynolds number (Re_K) is larger than O(1)....
conference paper 2015
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Fluid-Structure Interaction (FSI) problem is concerned with in various research fields such as mechanical, aerospace, civil and medical engineering. Their accurate prediction and control are desired. So far, in order to improve the performance of various applications, many kind of research, on the heat transfer enhancement due to vortex...
conference paper 2015
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Using passive tracers as sensors, we obtain Lagrangian measurements of tracers position, velocity and temperature in Rayleigh-Bénard convection at Ra=10^7-10^9. We report on statistics of temperature, velocity, and heat transport (Nusselt number). We observe that the Nusselt number is characterized by a largely intermittent behavior, likely due...
conference paper 2015
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Sonneveld, A.M.H. (author)
The global dairy market is turning sour. Prices have continued to fall due exceptionally strong supply growth – in particular following EU milk quota removal at the time of writing – and reduced buying. This stress has caused dairy players to seek new markets. Sub-Saharan Africa has become the new target. However, those with intentions to invest...
master thesis 2015
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Krabbenborg, L.D.M. (author)
master thesis 2015
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Savvaki, K. (author)
In this project an iterative approach was followed. Starting from a shapeless design through three different stages, the final proposal was formulated. The first iteration was aiming to make employees of a shared office aware of alternative ways to fight discomfort in the workplace.This proposal initiated the design process and it was kept open...
master thesis 2015
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Emissions from many natural and anthropogenic sources are hot compared with the surrounding ambient air. Such buoyancy effects cause the emitted plume to rise, increasing the effective source height and significantly decreasing the maximum ground level concentrations (in the vicinity of the source). A major aspect that distinguishes buoyant and...
conference paper 2015
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Bos, W. (author), Kadoch, B. (author), Schneider, K. (author)
The angle between subsequent particle displacement increments is evaluated as a function of the timelag in isotropic turbulence. It is shown that the evolution of the average of this angle contains two well-defined power-laws, reflecting the multi-scale dynamics of high-Reynolds number turbulence.
conference paper 2015
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Rentier, A.M. (author)
Dit bacheloronderzoek doet onderzoek naar de invloed van zuurstof op tumorgroei en andersom. Voor de zuurstofvergelijking wordt een diffusievergelijking geïntroduceerd die gediscretiseerd wordt met behulp van de Finite Volume Method, en vervolgens met behulp van Euler Achterwaarts geïntegreerd. De tumorgroei wordt met behulp van een exponentiële...
bachelor thesis 2015
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We report the results from two distinct direct numerical simulations (DNS) of turbulent Rayleigh-Bénard convection (RBC) for Rayleigh number of 10^5 and Prandtl number of 0.7 in a laterally unbounded domain confined between two horizontal isothermal plates with no-slip and free-slip boundary conditions respectively. The central aim of the...
conference paper 2015
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Bubble dynamics in turbulent flows has been extensively studied using the point-bubble approximation. But when the carrier flow varies on length scales smaller than the bubble size, this approximation is no longer appropriate and one needs to resolve all the scales present in the two-phase flow. 3D Direct Numerical Simulations of turbulent...
conference paper 2015
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