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The optimal transient growth process in a particle-laden channel flow is studied under the influence of the linear feedback control. The equilibrium Eulerian approach with the assumption that the particles are small and spherical is adopted. The effect of initial distribution of particles on the optimal transient growth of perturbations is...
conference paper 2015
document
Breedveld, S.C. (author)
Field hockey is a growing sport in the Netherlands, where both the male and female national squads belong amongst the best teams in the world. Field hockey requires a lot of technical capabilities from the player, which not all players possess. This sometimes leads to uncontrolled strikes of the ball, which can lead to accidents and injuries....
master thesis 2015
document
SCOPE Since 1986 the European Turbulence Conference (ETC) is held every other year with usually over 450 participants. The objective of the ETC is to provide a platform for scientists to present and discuss recent advances in the field of turbulence and related topics. TOPICS The principal topics of the ETC vary from fundamental physical issues...
conference 2015
document
Stabilizing effects of wall oscillation on two dimensional (2D) Tollmein-Schlichting (TS) waves and oblique TS waves developing in 2D channel flow are numerically investigated using the Floquet method. It was shown from the previous study[1] that the wall oscillation mostly has stabilizing effect and then TS mode is occasionally more stable than...
conference paper 2015
document
To investigate streamwise variations of turbulence statistics in the wide range of the drag reduction ratio for the zero-pressure-gradient turbulent boundary layer flow due to the injection of drag-reducing nonionic surfactant solutions, we performed the laser-Doppler velocimetry (LDV) measurement at a new experimental apparatus with the larger...
conference paper 2015
document
Ding, J. (author), Van der A, R.J. (author), Mijling, B. (author), Levelt, P.F. (author), Hao, N. (author)
The Nanjing Government applied temporary environmental regulations to guarantee good air quality during the Youth Olympic Games (YOG) in 2014. We study the effect of those regulations by applying the emission estimate algorithm DECSO (Daily Emission estimates Constrained by Satellite Observations) to measurements of the Ozone Monitoring...
journal article 2015
document
Vermaas, D.A. (author), Sassenburg, M. (author), Smith, W.A. (author)
Different pH requirements for a cathode and an anode result in a non-optimal performance for practical solar fuel systems. We present for the first time a photo-assisted water splitting device using a bipolar membrane, which allows a cathode to operate in an acidic electrolyte while the photoanode is in alkaline conditions. The bipolar membrane...
journal article 2015
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Voorendt, M.Z. (author)
lecture notes 2015
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Al-Kutubi, H. (author), Rassaei, L. (author), Olthuis, W. (author), Nelson, G.W. (author), Foord, J.S. (author), Holdway, P. (author), Carta, M. (author), Malpass-Evans, R. (author), McKeown, N.B. (author), Tsang, S.C. (author), Castaing, R. (author), Forder, T.R. (author), Jones, M.D. (author), He, D. (author), Marken, F. (author)
The highly rigid molecular structure of Polymers of Intrinsic Microporosity (PIM) – associated with a high thermolysis threshold – combined with the possibility to fill intrinsic micropores allows the direct “one-step” templated conversion of metal nitrates into nano-structured metal oxides. This is demonstrated here with PIM-EA-TB and with PIM...
journal article 2015
document
Sippe, R. (author)
Big data is a broad term that is related to the collection, storage and analysis of large volumes of data. The term big data is often associated with the popular 3V’s model, which defined that data is growing significantly in the characteristics volume, variety and velocity. In this research we defined big data as: the collection, storage and...
master thesis 2015
document
Nizamoglu, A. (author)
The performance of high precision applications highly depend on the ability to reject mechanical disturbances. Extreme accuracies can only be achieved if the object can be isolated from its environment. Vibration isolation is the process of isolating an object from the source of vibration. In active vibration isolation, an entire instrument of...
master thesis 2015
document
Van der Beek, P.P. (author)
At the dawn of a large infrastructure replacement program in the Netherlands the question rises whether current forms of public-private partnerships in infrastructure projects are sufficient to deal with the complexities involved in large scale replacement of water infrastructure objects. It is stated that the concept of public private...
master thesis 2015
document
Kleijn, J. (author)
Feasibility study to the applicability of alternative fuels on chemical tankers. Only summary available because of confidentiality.
master thesis 2015
document
Becker, T. (author)
In this thesis several methods for variable selection for statistical models are examined. There is specific attention for variable selection in so called "dependent data", in which there exists a strong correlation between the independent variables.
bachelor thesis 2015
document
Boelee, M. (author)
The aim of this MSc project is to investigate whether the dynamics of the interest rate spreads can be explained by a debt sustainability indicator. In this thesis, we evaluate the debt sustainability indicator with a new model. The essence of this model is to produce forecasts for several economic variables, where the government debt is one of...
master thesis 2015
document
Windels, E.R.G. (author)
A research simulation model was created to perform extended research into formation flight dynamic behaviour. The principle of aircraft flying in formation is to lower the induced drag and fuel flow. A trail aircraft that flies within the wake vortex field of a lead aircraft encounters an increased effective angle of attack, reducing the induced...
master thesis 2015
document
Singh, A.S. (author)
Computational numerical methods are important tools in science and technology today. Numerical simulations of nonlinear problems are usually computationally expensive. Model order reduction is a technique to reduce computation time of mathematical numerical models. Model order reduction of nonlinear problems is still in its developing state. In...
master thesis 2015
document
Dam, M.A.C. (author)
The design of a mooring system can be a frustrating and time consuming task, owing to the large number of design cases, software interfaces and sometimes changing requirements. Although frequency domain is a faster method, the behavior of the FPSO and the loads on the turret mooring system in a certain environment is most accurately predicted in...
master thesis 2015
document
Bhatt, K. (author)
To an observer, it might appear that anchor handling is a fairly simple straightforward and profit making business. However, with deep-water drilling and fluctuations in price of oil, the operation is becoming riskier than ever before. Besides, operational and environmental constraints, the crew also has to deal with pressures of time and money....
master thesis 2015
document
Dignum, M. (author)
conference paper 2015
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