Searched for: mods_note_programme_s:"Aerodynamics"
(1 - 20 of 31)

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van Pelt, Timo (author)
This project proposes a series of experiments that involve plasma synthetic jet actuators. The first experiment will perform a jet characterisation experiment that will research the effect of orifice geometry on the overall performance of the actuator. The second experiment will built upon the first experiment and will use a plasma synthetic jet...
master thesis 2019
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Jain Y R, Sumedh (author)
The global fuel consumption by Heavy duty vehicles is an important issue in every climate change summit. Aerodynamic drag consumes majority of fuel at highway speeds. Thus, it is important to strive hard to reduce drag using different techniques. WABCO's SideWing (side-skirt) is an air dam (aerodynamic device) placed along the sides of the...
master thesis 2018
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Gnanasundaram, Arun (author)
The whole construct of explicit algebraic Reynolds stress models, as they are known in RANS, is based on the weak equilibrium assumption. By employing this assumption, and in addition, incorporating models for terms in the Reynolds stress transport equations, the system of six partial differential equations can be simplified to an algebraic form...
master thesis 2018
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Kaandorp, Mikael (author)
The application of machine learning algorithms as data-driven turbulence modelling tools for Reynolds Averaged Navier-Stokes (RANS) simulations is presented. A novel machine learning algorithm, called the Tensor Basis Random Forest (TBRF) is introduced, which is able to predict the Reynolds stress anisotropy tensor. The algorithm is trained on...
master thesis 2018
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Kurian, Naina (author)
The chaotic nature of turbulent flows combined with the diverse scales present within turbulent flows makes these flows very challenging to accurately simulate. Since turbulence is a phenomenon that cannot be avoided in real flows, a good understanding and accurate representation of turbulent flows would help to advance in the technical front in...
master thesis 2018
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Voogt, Nick (author)
In spaceflight, a launch vehicle is a rocket used to carry a payload from the Earth's surface into outer space. By traveling supersonically, launch vehicles are exposed to harsh environmental conditions during the various phases of operation. However, the most extreme operational conditions are encountered within the rocket engines themselves....
master thesis 2017
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Brust, S.G. (author)
The importance of reliable and efficient launch vehicles pervades the many industries which rely on space based hardware. An experimental investigation has been performed into the effects of nozzle length and exhaust plume presence on a FESTIP axisymmetric base flow at Mach 0.7. Three different nozzle lengths (L/D = 0.6, 1.2, 1.8) were tested to...
master thesis 2017
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Moreira Ribeiro, A.S. (author)
Passive vortex generators (VGs) are small plate-devices that are placed on the top of wings, in an array configuration, in order to delay or event prevent stall. Due to their small size, when compared to the wing, a highly refined mesh is required to accurately simulate the flow behaviour downstream the VG location. As a consequence, the...
master thesis 2017
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Vonck, F.W.J. (author)
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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Hebbare, R.R. (author)
master thesis 2016
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Morias, K. (author)
This thesis follows a previous study on the aerodynamic characterization of helium-filled soap bubbles (HFSBs) for large-scale PIV measurements and aims at characterizing statistically the tracing fidelity of HFSBs in PIV experiments, considering the statistical distribution of the bubbles diameter, slip velocity, relaxation time and density....
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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Kumar, A. (author)
Detailed investigation of factors that influence Wind-Tunnel modeling in vehicle thermal simulation. Tasks involved observing and investigating the additional equipment attached to the wind tunnel model that could alter the results when compared with the computational simulation results. All the study is based on computational simulation finally...
master thesis 2016
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Van den Broecke, J. (author)
In this work a study was performed on the electrical, fluid-mechanical and net efficiency of nanosecond-pulsed dielectric barrier discharge (ns-DBD) plasma actuators. The plasma actuator efficiency was tested for dielectric barriers with a thickness between 0.5 and 1.5mm and made out of four different materials: Kapton, Lexan, PTFE and silicone...
master thesis 2016
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Zhang, Y. (author)
Based on the recently developed mimetic spectral element method, we propose an effective numerical scheme for solving three-dimensional periodic incompressible Euler flows, which spatially preserves mass, kinetic energy and helicity. Preserving multiple integral invariants numerically will significantly contribute to the stability and accuracy...
master thesis 2016
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Gheyssens, T. (author)
Due to the awareness of climate change, more sustainable and efficient ways of transport are needed. The most polluting road transport mode in the European Union are the long-haul tractor-trailer combinations. This study will investigate the aerodynamic characteristics of three vehicles in a platoon subjected to cross wind conditions. The effect...
master thesis 2016
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Zhang, X. (author)
Air traffic noise, especially during the aircraft take-off and landing, has been universally acknowledged as a nuisance, for which reason, the International Civil Aviation Organization(ICAO) has ratified articles and established specifications aiming at the attenuation of air traffic noise, such as the Annex 16. The implementation of large...
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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Sitter, M. (author)
Fluidic oscillators are devices that generate a temporally oscillating jet when supplied with a fluid under pressure. In recent investigations fluidic oscillators have proven to be very efficient in active flow control applications, while only little is known about the internal working mechanism of these devices. This thesis presents the...
master thesis 2015
Searched for: mods_note_programme_s:"Aerodynamics"
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