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 15 of 15 for “"Experimental fluid dynamics"”.
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Advances in the visualization and analysis of boundary layer flow in swimming fish
In biology, the importance of fluid drag, diffusion, and heat transfer both internally and externally, suggest the boundary layer as an important subject of investigation, however, the complexities of biological systems present significant and unique challenges to analysis by experimental fluid …
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A Hydrodynamic Analysis and Conceptual Design Study for an External Storage Enclosure System for Unmanned Underwater Vehicles.
… hull. Performance is predicted via Computational Fluid Dynamics using OpenFOAM and is validated using Experimental Fluid Dynamics via model towing resistance. Structural strength was determined by Finite Element Analysis.
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Development of computational and experimental techniques to Investigate the effect of biofouling on ship hydrodynamic performance
… this PhD study aims to develop computational and experimental techniques to investigate the effect of biofouling on ship hydrodynamic performance. This aim has been realised by achieving several milestones using Computational Fluid Dynamics (CFD) and Experimental Fluid Dynamics (EFD).;This PhD …
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Exploring the dynamics of fluid-structure interaction: From single structures to complex environmental systems
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-08-01
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Advances in the visualization and analysis of boundary layer flow in swimming fish
In biology, the importance of fluid drag, diffusion, and heat transfer both internally and externally, suggest the boundary layer as an important subject of investigation, however, the complexities of biological systems present significant and unique challenges to analysis by experimental fluid …
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Separated Flows Over Non-slender Delta Wings
… the speed of sound. This thesis examines experimentally the flow separation over low-sweep angle or 'non-slender' delta wings, specifically focusing on the coherent vortices characteristic of such geometries. First, stereo particle image velocimetry and surface pressure are used to …
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Dynamic control of aerodynamic forces on a moving platform using active flow control
The unsteady interaction between trailing edge aerodynamic flow control and airfoil motion in pitch and plunge is investigated in wind tunnel experiments using a two degree-of-freedom traverse which enables application of time-dependent external torque and forces by servo motors. The global …
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The effects of turbulence on the measurements of five-hole probes
… pressure probe is a commonly used device in experimental fluid dynamics and aerodynamics. By measuring the pressure at the five pressure ports located on the tip of the probe it is possible to determine the total pressure, static pressure and the three components of velocity at a point in the …
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Design of an Experimental Rig to Characterize the Gust Response of Small Wind Turbines and Autorotating Seeds
… tested in a towing tank using a custom-built experimental rig. The setup was designed and constructed to allow for the measurement of instantaneous angular velocity of a rotor model towed at a prescribed kinematic profile along the tank. The conclusions presented in this thesis are based on …
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The Influence of Yaw and Coning on Small Bio-Inspired Wind Turbines
This thesis is inspired by the coning mechanism of samaras. The study consists of wind tunnel measurements of low aspect ratio horizontal-axis wind turbine models. The tested coning angles (β) ranged from 5◦ to 25◦, and power and tip-speed ratio were measured at Reynolds numbers Re_D = [0.46 ×10^5, …
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Design of a new vertical channel flow facility to study particle laden turbulent flows
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms
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Trailing Edge Aerodynamics: Flow Regimes, Geometry and Loss
… trailing edge holes geometries is investigated experimentally. These geometries undergo transonic vortex shedding when there is no trailing edge blowing, but the addition of coolant to the base region is able to suppress the vortex shedding and reduce the loss by up to 39%. In order to disrupt …
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Control of supersonic axisymmetric base flows using passive splitter plates and pulsed plasma actuators
An experimental investigation evaluating the effects of flow control on the near-wake downstream of a blunt-based axisymmetric body in supersonic flow has been conducted. To better understand and control the physical phenomena that govern these massively separated high-speed flows, this research …
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Internal Fluid Dynamics and Frequency Characteristics of Feedback-Free Fluidic Oscillators
In this work, the internal fluid dynamics and frequency characteristics of feedback-free fluidic oscillators are investigated experimentally and numerically. The internal flow field of various scale oscillators was extracted using a refractive index-matched Particle Image Velocimetry (PIV) …
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The effect of gas on multi-stage mixed-flow centrifugal pumps
… that the size of the gas bubbles present in the fluid is critical to the pump performance. A transparent, full-scale pump was built in order to explore the flow features in single and multiphase flows. Laser Doppler Velocimetry and high speed imaging in single phase flow showed a high turbulence …