Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"aerodynamic Interaction"”.
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An Experimental Investigation of Wind Turbine Aerodynamic Interaction
… are also modeled for the dominant modes of interaction when operating a wind turbine within the wake of upstream machines; covering single-, multiple-, and lateral-wake scenarios.</p> <p>A year's worth of wind speed data are analyzed to reveal seasonal trends of the wind turbine input …
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Aerodynamic interaction of an inverted wing with a rotating wheel
This research contributes to the knowledge on aerodynamic wing - wheel interaction. Hereto an experimental and computational study has been performed, during which the wing ride height and the wing - wheel overlap and gap have been considered as the primary variables. The wheel drag for the …
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The aerodynamic interaction of a rotating wheel and a downforce producing wing in ground effect
… cars depend heavily on the effectiveness of the aerodynamic package. The front wing and front wheels make a significant contribution and therefore must be well understood. Previous investigations have focused on the aerodynamic characteristics of either an isolated downforce generating wing in …
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Two-degree-of-freedom subsonic wing rock and nonlinear aerodynamic interference
… the flowfield, fully accounting for the dynamic/aerodynamic interaction. For a single degree of freedom in roll, the method predicts the angle of attack at which the symmetric configuration of the leading-edge vortex system becomes unstable, the amplitude, and the period of the resulting …
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Contributions to Ship-Airwake-Rotor Coupling Characterization Using Controlled Forcing
… response. A central aspect of the DI is the aerodynamic interaction between the ship airwake and the rotor wake, which degrades handling qualities and increases pilot workload, yet the underlying mechanisms governing ship-rotor coupling remain insufficiently understood. The ship-rotor …
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A Computational Framework for Simulating Entanglement-Based Drone Countermeasures with Flexible Filaments Immersed in Viscous Flow
… framework for modeling the coupled dynamic interactions of highly flexible slender filaments immersed in a viscous flow and their entanglement with themselves and moving structures. This work is motivated by a novel drone countermeasure that entangles propellers with flexible filament …
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Analysis and Improvement of Aerodynamic Performance of Straight Bladed Vertical Axis Wind Turbines
… for their relatively simple structure and aerodynamic performance. Their commercialization, however, still encounters many challenges. A series of studies were conducted in the current research to improve the VAWTs design and enhance their aerodynamic performance. First, an efficient design …
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Low-Rank Distributed Control with Application to Wind Energy
… by developing a low-complexity model of the aerodynamic interaction between wind turbines. The model is used in a series of examples, where the wind turbines coordinate their power productions in order to maximize the power production of the wind farm. The examples indicate that the benefit …
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Fundamental studies of aerosol combustion
… These oscillations were possibly caused by aerodynamic interaction between droplets and gas motion ahead of the flame. Also Stretch and radiation probably influenced these oscillations. Inert glass particles in a gaseous fuel-air mixture had no effect on flame speed or structure. However, …
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Development of Comprehensive Dynamic Damage Assessment Methodology for High-Bypass Air Breathing Propulsion Subject to Foreign Object Ingestion
… using a uniquely devised Fluid-Structure Interaction (FSI) technique. Using advanced finite element formulation, this approach enabled the accurate simulation of the comprehensive damage progression of the propulsion systems by including aerodynamic interaction. Through this strategy, …
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LES of Jets and Sprays Injected into Crossflow
… collision, breakup, and a novel submodel for aerodynamic four-way coupling: The particle drag is corrected depending on relative positions of the particles. Mixture fraction and temperature transport equations are solved to enable the modeling of droplet evaporation and the mixing of the …
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Planet formation and evolution in protoplanetary disc
… evolution as a consequence of disc-planet interaction from a numerical and theoretical perspective. In the core accretion scenario, planets form in protoplanetary discs by growing the initial μm-sized dust grains up to the size of a planet. The aerodynamic interaction between the dust …