Searched for: contributor%3A%22Van+Zuijlen%2C+A.H.+%28mentor%29%22
(1 - 20 of 47)
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Dixon, K.R. (author)A 3D unsteady multi-body panel method is developed that can model arbitrary geometries. The method has been specifically designed so that it can handle the blade-wake interactions and viscous wake effects that are important for modelling a vertical axis wind turbine (VAWT). A systematic validation and verification of the model is presented...master thesis 2008
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Shukla, R.H. (author)The high speed flows with mach number above 5 are generally categorised as hypersonic flows. In order to generate hypersonic flows in wind tunnel for aerothermodynamic testing, a shock tube type setting is generally known as one of the most commonly used methods. Similarly Hypersonic test facility at TUDelft (HTFD) is a Ludwieg tube type wind...master thesis 2010
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Landstra, F.W. (author)Wind engineering is becoming an increasingly important field of research. The pursuit for larger and more efficient wind turbines make the accurate prediction of forces and moments on turbine blades evermore crucial. During wind turbine starts and stops the turbine blades are subjected to large angles of attack. At these large angles the flow...master thesis 2010
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van Deun, Willem-pieter (author)Nowadays various studies utilizing computational techniques are trying to contribute to the medical world. In this light Computational Fluid Dynamics (CFD) techniques are already used for some time to simulate flow behavior in the human airway system. This was mostly done for idealized and simplified airway models as it is only recently that...master thesis 2011
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Bouchmal, A. (author)Currently, one of the most promising active ow control device is the Dielectric-Barrier Discharge (DBD) actuator. Therefore, Delft University of Technology seeks to construct a model of this plasma actuator for use with CFD. The advantages of having a plasma actuator model for CFD purposes is clear: It facilitates the prediction of flows over...master thesis 2011
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Kuijken, Lukas (author)Energy demand from wind greatly increases, as such more remote sites need to be explored in order to find good wind resources. These remote sites are driving the industry further offshore and therefore into extreme wind and sea conditions. This push towards extreme conditions requires technological advancements concerning the wind turbine loads,...master thesis 2015
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Dhert, T. (author)Recent improvements in accuracy and effciency of numerical simulation techniques in the field of engineering have led to an increasing interest in applying high-fidelity models for wind turbine design. Computational Fluid Dynamics (CFD) based on Reynolds-Averaged Navier-Stokes (RANS) equations in a co-rotating reference frame has shown promising...master thesis 2015
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Ter Hofstede, E. (author)Flow-induced vibration (FIV) plays an important role in the nuclear industry. In nuclear power plants (NPP), the FIV may cause fatigue problems, stress corrosion cracking, possible failure modes and fretting wear. This in return can lead to nuclear safety issues and substantial stand-still costs due to unplanned outages. It is therefore...master thesis 2015
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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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Meijers, P.C. (author)Turbulence plays an important role in a broad range of engineering applications. In the industry RANS simulations are a common method for predicting turbulent flow. A broad range of RANS turbulence models have been developed over the past decades. For the assessment of complex three-dimensional flow fields Reynolds Stress Transport Models are a...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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Rooks, J.J.W. (author)To investigate the mechanisms of wing trailing edge noise the aeroacoustic sound generation by a NACA 0018 has been computed with direct numerical simulations using the Lattice Boltzmann Method. Noise from the straight trailing edge wing is compared with the sound generated by a sawtooth serrated wing, which reduces the noise emission according...master thesis 2016
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- Cankaya, E. (author) master thesis 2016
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- Bakker, M. (author) master thesis 2016
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Kottapalli, S. (author)Flow induced vibrations (FIV) is a known problem in nuclear reactors. The interaction between the turbulent flow of the coolants and the fuel rod bundles generates vibrations which are undesirable. These vibrations can be a major cause of fatigue failures, stress corrosion cracking and fretting wear of materials, which lead to stand-still costs....master thesis 2016
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Peeters, P.T. (author)Pipelines with multiphase flow of gas, oil, and water are commonly used in the oil and gas industry. In the presence of offshore platforms or vessels, the pipeline ends with a vertical riser. A possible new concept is to use a single large diameter pipeline along the sea floor that ends into multiple smaller diameter risers. This concept might...master thesis 2016
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Ramdin, S.F. (author)The Blade Element Momentum (BEM) theory is widely used for the design of wind turbine blades and predicting aerodynamic loads because of its ability to compute fast and reasonable results. However, the Prandtl tip loss factor is needed to improve the accuracy of the results near the tip. In this thesis the limitations and shortcomings of this...master thesis 2017
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Wanthanadamkerng, Thawatchai (author)The use of vortex generators (VGs) is a prevailing technology in large modern wind turbines due to its potential to increase wind turbine annual energy production [39] by re-energizing the momentum energy in the boundary layer and, as a consequence, delay the flow separation. Many researchers have been extensively studying the effects of VGs on...master thesis 2017
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Steenbeek, Jorden (author)High-fidelity hybrid RANS/LES methods are unable to accurately predict the transition from laminar to turbulent boundary layer flows. Usually resulting in an incorrect prediction of boundary layer characteristics. In this study, a hybrid RANS/LES model was developed for transitional boundary layer flows. The transitional kkL-omega turbulence...master thesis 2017
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