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Skip to Search Results- 1Ahmadi Jokani, Farzad
- 1Booysen, Adriaan
- 1Chen, Chin Wang
- 1Elyasi, Mohammad Mahdi
- 1Fathizadeh, Ali
- 1Gibeau, Bradley
- 2Aerodynamics
- 2Drag Reduction
- 2Particle Image Velocimetry
- 2Particle Tracking Velocimetry
- 2Particle image velocimetry
- 2Superhydrophobic
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Particle image velocimetry/ tracking in turbulent flow over riblet surfaces with superhydrophobic coating
DownloadFall 2016
Riblet surfaces have been introduced as of one successful technique to reduce skin-friction. Advanced particle image velocimetry (PIV) and particle tracking velocimetry (PTV) are employed to investigate turbulent structures over riblet surfaces by several researchers including Suzuki and Kasagi...
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Unsteady characteristics of three-dimensional turbulent flow with separation in an asymmetric diffuser
DownloadFall 2017
A great number of studies have been undertaken to understand separated turbulent boundary layers (TBLs) due to its importance in the performance, design and control of many engineering systems (Hal 2000). Flow separation has a complicated three-dimensional nature in many flow configurations...
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Fall 2018
The work within this thesis is concerned with an unsteady flow phenomenon known as vortex shedding. It is ubiquitous throughout engineering applications and leads to unwanted noise, vibration, and pressure drop in the afflicted systems. Vortex shedding is highly complex, and even with over a...
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Fall 2018
Vortex generators (VGs) are widely applied passive flow control devices that are proven to have significant effect in enhancing the performance of an aerodynamic system. With the recent development in non-intrusive measurement techniques, and computing ability, it has become possible to measure...
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Fall 2018
Helicopters have proven to be a versatile air vehicle in today’s society and are used in a variety of applications. Many complexities arise in the aerodynamics of helicopters due to the presence of the main rotor downwash and the diverse range of flight conditions. The various uses of helicopters...
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Investigating the Performance of Randomly Patterned Superhydrophobic Surfaces in Laminar and Turbulent Channel Flows
DownloadSpring 2019
Superhydrophobic surfaces (SHSs) have been investigated based on their success in water repellency, anti-fouling, and drag reducing effects seen in nature (Neinhuis & Bartlott 1997; Kreuz et al. 2001). SHSs utilize a low surface energy material with a microscale surface roughness to prevent water...
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Investigation Using Polymer Additives to Mitigate Erosion in Multiphase Turbulent Pipe Flow
DownloadSpring 2019
Long chained polymers were evaluated for their impact on reducing pipe erosion during two-phase flow. The research study was compartmentalized into three categories. One of the components of this study investigated the erosion of different materials in an attempt to find a faster eroding...
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Spring 2020
A reduction in skin-friction drag can lead to lower energy consumption in variety of transportation vehicles, and consequently results in a smaller environmental impact. Several methods have been presented to reduce the skin-fiction and one of these methods is to introduce an air layer at the...
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Fall 2020
The transportation of mixtures of particles and liquids using slurry pipelines plays a crucial role in the petroleum and mining industries. Slurry pipeline flows are typically turbulent and the presence of the particulate phase results in pipe wear and increased pumping cost. As a result, slurry...
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Fall 2021
The near wake behind the Ahmed body at zero-yaw has been extensively studied in the past, but comparatively little is known about the changes in the wake flow patterns during crossflow. Measurements of the near wake of a square-back Ahmed body were obtained at a Reynolds Number of ReH = 9.2104...