Searched for: department%3A%22Aerodynamics%252C%255C+Wind%255C+Energy%252C%255C+Flight%255C+Performance%255C+and%255C+Propulsion%22
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Janssen, S.R. (author)
Double degree. Supervision of the thesis also at: Faculty Applied Mathematics, Department Numerical Analysis, Programme M.Sc. Applied Mathematics. Structure-preserving discretization techniques preserve fundamental structure of operators and operands found in partial differential equations. Classical discretization techniques sometimes neglect...
master thesis 2016
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In this study a full CFD-CSD FSI method is developed, extended with a modal approach, to assess the potential flutter behavior of the SNL 100-m wind turbine blade. The FSI method is based on the existing FOAM-FSI framework and extended with a non-linear beam model. The analysis consists of four steps: non-linear steady state FSI deformation of...
master thesis 2016
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Kessels, P.C.J. (author)
The Reynolds-averaged Navier-Stokes equations are numerically solved in a segregated manner, along with the Spalart-Allmaras turbulence model. The Galerkin as well as multiple stabilized finite element formulations are derived for the Spalart-Allmaras turbulence model, and tested for robustness. For a turbulent channel flow and a backward facing...
master thesis 2016
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Hofkens, A. (author)
In order to extract the body force field that is generated by a plasma actuator from velocity data, most researchers disregard the influence of the pressure gradient to obtain a spatial and temporal description of the body force field. There is however some discussion whether this assumption is valid or not. The current research tries to compute...
master thesis 2016
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Fokker, A.D. (author)
Recent trends in the automobile industry focus towards enhancing the operating efficiency of the road vehicle. One can achieve this by a combination of increasing the powertrain efficiency, reducing the weight and increasing the aerodynamic performance. The scope of this study is on the latter, i. e. enhancing the aerodynamic performance. Most...
master thesis 2015
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Leuthold, R.C. (author)
The leading edge inflated (LEI) surf-kite is a suitable wing design for airborne wind energy (AWE) power generation because the bridling and leading edge design allow the wing to be de-powered while retaining good steer-ability. Fluid-Structure Interaction (FSI) modelling is required to capture the flight behavior of an LEI kite, due to it's...
master thesis 2015
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Bal, S.R. (author)
The main driver of developments in the wind energy sector is not the absolute maximization of energy capture, but the reduction of the Cost of Energy (CoE). More and more research is carried out to investigate control of the air flow to reduce fatigue loads, structural requirements, and apply novel control strategies to ultimately reduce this...
master thesis 2015
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Zhou, T. (author)
In some situations, concentrated vorticity which forms a vortical flow is involved in the inflow of a propeller. The impingement of the vortex on the propeller has several detrimental effects, e.g., foreign object damage during ground operation, impact on the propeller performance, unsteady loading on the blade, and tonal noise generation. The...
master thesis 2015
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Pröbsting, S. (author)
Noise generated aerodynamically by the airflow over a lifting surface is often of concern for applications as diverse as air and ground transportation, heating, ventilation, air-conditioning systems, and wind turbines. The thesis describes the application of advanced optical flow measurements techniques for the visualization and description of...
doctoral thesis 2015
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Van Keymeulen, Q.P.D. (author)
The subject of this research is a new concept of modular aircraft designed to cope with the seasonal variation in passenger demand by opening the fuselage and increasing its length with extra bits of fuselages. The goal is to find out if this new aircraft concept is more profitable than the current alternatives. Previous work have looked at...
master thesis 2015
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Percin, M. (author)
The growing need for mobile aerial platforms capable of performing reconnaissance tasks and gathering intelligence in hazardous and physically inaccessible areas has given rise to an increasing interest in the development of micro aerial vehicles (MAVs), in view of their potential capabilities of versatile and highly maneuverable flight....
doctoral thesis 2015
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Candade, A.A. (author)
Advanced propeller propulsion systems potentially provide a significant reduction in fuel burn compared to traditional turbofans. An alternative to the conventional aft-fuselage mounted pusher layout is the horizontal tailplane-tip mounted tractor propeller concept. The aim of this thesis is an experimental investigation of the aeroacoustic and...
master thesis 2015
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Van Arnhem, N. (author)
Boundary Layer Ingestion is an integrated propulsion concept in which a propulsor operates in boundary layer flow instead of the free streamflow with the goal to reduce the fuel flow for a given operating condition. The objective of this thesis is to obtain a better understanding of the power benefit of an installed pusher propeller at the aft...
master thesis 2015
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Stokkermans, T.C.A. (author)
In light of the energy crisis of the early 1970's, NASA and industry gained a renewed interest in high-speed propellers for improved propulsive efficiency and explored the idea of swirl recovery vanes (SRV) to generate a net thrust from the residual swirl in the propeller slipstream. After this first effort on the aerial application of SRV, only...
master thesis 2015
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Chew, T. (author)
This report focuses on the design and analysis of various subcomponents of the supersonic nozzle test section of the ORCHID setup. The primary concern is a study dedicated to the model support system which is crucial to the success of a series of gas dynamic experiments for high fidelity software validation. Standard design rules and empirical...
master thesis 2015
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Goossens, S.J. (author)
The market share of wind energy is related to many factors, including politics, social acceptance and financial feasibility. In light of reducing the Levelised Energy Cost (LEC) generated from wind energy, power company Vattenfall is continuously looking for new ways of monitoring and improving wind turbine yield. Recent publications have shown...
master thesis 2015
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Van Dam, E.M. (author)
This thesis experimentally assesses the inflow towards the propulsors and the pressure distribution at the propulsor fan-face for the boundary layer ingesting D8 aircraft, and examines the dependence of the model, the propulsor and the flight condition on the inlet distortion. Use is made of mini-tuft flow visualization and five hole probe...
master thesis 2015
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Hidalgo Lopez, D.F. (author)
Interest on rotor wake analysis has always been a point of focus of rotorcraft analysis and design, its importance is undeniable and has been kept in current status within the research community as improvement of knowledge and tools have allowed the exploration of such phenomenon and its influence on engineering applications. While several...
master thesis 2014
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Sciacchitano, A. (author)
Particle Image Velocimetry (PIV) is a well-established technique for the measurement of the flow velocity in a two or three-dimensional domain. As in any other technique, PIV data is affected by measurement errors, defined as the difference between the measured velocity and its actual value, which is unknown. Aim of uncertainty quantification is...
doctoral thesis 2014
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Trapp, C. (author)
Pre-combustion CO2 capture applied to integrated gasification combined cycle (IGCC) power plants is a promising technical solution to reduce CO2 emissions due to fossil-fuelled electricity generation in order to meet environmental targets in a carbon-constrained future. The pre-combustion capture process allows to effectively remove CO2 from...
doctoral thesis 2014
Searched for: department%3A%22Aerodynamics%252C%255C+Wind%255C+Energy%252C%255C+Flight%255C+Performance%255C+and%255C+Propulsion%22
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