Browsing Auburn Theses and Dissertations by Author "Thurow, Brian"

Now showing items 21-40 of 49

Development of an Actively-Cooled Imaging System for Embedded Optical Measurements in High-Speed Flows

Alles, Ryan (2023-11-15)

High speed airbreathing propulsion systems have become increasingly complex with the development of hypersonic scramjet engines. Analysis of scramjet flow structures is difficult due to extreme thermal environments and ...

Development of Metal 3D-Printed Helium-Filled Soap Bubble Nozzles

Swiney, Paul (2020-11-20)

Particle Image Velocimetry (PIV) is a useful flow visualization technique to obtain instantaneous velocity measurements of a fluid. The use of traditional tracer particles for PIV measurements is limited to small field of ...

Discretization Error Estimation Using Method Of Nearby Problems: One-Dimensional Cases

Raju, Anil (2005-12-15)

Discretization error is defined as the difference between the solution of the discretized equation and the exact solution of the original partial differential equation. There are two main goals in this study. The first ...

Dynamic Stability and Control: Methods and Developments

Heiser McDaniel, Melissa (2017-01-10)

The purpose of this work is to assess the overall usage, evaluation, and understanding of damping derivatives with a focus on accuracy needs and computational efficiency. With the increased usage of neutrally stable and/or ...

Effect of Random Noise and Gaussian Noise Forcing on the Wake of a Circular Cylinder

Gambhir, Venkat Praveen (2015-05-11)

Flow over a bluff body has been a topic of extensive investigation, due to a variety of engineering problems such as vortex induced vibrations, unsteady forces and noise associated with the periodic flow in the wake. The ...

End-Wall Flow of a Surface-Mounted Obstacle on a Convex Hump

Ahmed, Hamza (2009-11-18)

A convex hump has been used to overcome the undesirable effects of the juncture vortex. The effects of a convex hump on the approach boundary layer and consequentially the end-wall flow were quantified. A convex geometry ...

Enhancing Image Resolvability in Obscured Environments Using 3D Deconvolution and a Plenoptic Camera

Bolan, Jeffrey (2015-05-08)

Light field imaging with a plenoptic camera is an emerging flow diagnostic technique capable of capturing three dimensional information about a given volume or flow from a single plenoptic image. Translucent occlusions ...

Examination of FlightStream for Proximity Flight with Stores

Todd, Eric (2017-07-27)

The goal of the following work was to validate and demonstrate the capability of the FlightStream solver to model proximity flight. To this end, wind tunnel proximity data for a MK-82SE bomb released from an F-16 was used ...

An Examination of MHz Rate PIV in a Heated Supersonic Jet

Brock, Bryan (2014-07-29)

An experimental investigation of a high temperature, supersonic jet conducted at the University of Mississippi's National Center for Physical Acoustics is described. Time-resolved particle image velocimetry (PIV) was used ...

An Experimental Investigation into the Wildland Fire Burning Characteristics of Loblolly Pine Straw

Stubbs, Daniel (2021-07-19)

Wildland fires present a threat to both the environment and to homes and businesses in the wildland urban interface. Understanding the behavior of wildland fires is crucial for developing informed risk management techniques, ...

Experimental Investigation of a Liquid Immersion Cooled Electronics Module using Two-Phase Heat Transfer for Thermal Management

Gess, Joshua (2015-09-25)

As society’s demand for constant connectivity to one another grows, both from an economic and social perspective, the requirements on high performance data centers throughout the world will as well. The expeditious transfer ...

An Experimental Study of the Propagation of Equivalence Ratio Oscillations on their Effect on Combustion Instabilities

Walker, Josh (2019-04-23)

Lean premixed combustors have become a promising method in gas turbine engines to operate more efficiently and within the regulatory standards for emissions. However, this lean premixed operation is susceptible to combustion ...

Investigation of Aeroacoustic Effects of Trailing-Edge Modifications to Blades of a Coaxial Counter-rotating Rotor

Munz, Karlyle (2020-11-17)

Noise generated by the rotor blades of modern UAVs pose significant limitations to the widespread adoption of UAVs in the future. To mitigate noise production, rotor blades with a serrated trailing-edge have been used to ...

Launch Vehicle Performance Enhancement Using Aerodynamic Assist

McDavid, Brian (2008-08-15)

A complete preliminary design model of a three-stage solid-fuel launch vehicle has been combined with a genetic algorithm to perform an optimization study with the goal to enhance performance using aerodynamic assist. ...

A Methodology for Detecting Pilot Fatigue and Head Tilt Measured Using Flight Simulation of an Unmanned Aerial Vehicle

Bailey, Judith (2013-04-16)

The objective of this research project was to determine whether the human factors of fatigue and head tilt can be detected in real time by measuring the head motion of pilots flying simulated unmanned aircraft missions. ...

Methods for Optimization of a Launch Vehicle for Pressure Fluctuation Levels and Axial Force

Thomas, Scott (2008-08-15)

A computational fluid dynamics (CFD) code has been combined with a Genetic Algorithm (GA) to perform a shape optimization study on a two dimensional axisymmetric model of a typical launch vehicle. The objective of this ...

On the development of a Neural Radiance Field technique for tomographic reconstruction applied to flow diagnostics

Kelly, Dustin (2024-04-25)

In this work, a novel neural implicit representation tomography algorithm based on Neural Radiance Fields is developed and demonstrated for 3D flow diagnostics. Neural Radiance Fields (NeRF) originate from the computer ...

On the Development of a Volumetric Velocimetry Technique using Multiple Plenoptic Cameras

Fahringer, Timothy Jr (2018-08-29)

Plenoptic PIV was recently introduced as a viable three-dimensional, three-component velocimetry technique based on light field cameras. One of the main benefits of this technique is its single camera configuration allowing ...

Plenoptic BOS: Combining a Plenoptic Camera with the Background Oriented Schlieren Technique

Klemkowsky, Jenna (2016-12-07)

The background oriented schlieren (BOS) technique is a method of observing the refraction of light rays passing through a density varying medium. When used with a conventional imaging system, this technique captures a ...

A Real-time Implementation of Rendering Light Field Imagery for Generating Point Clouds in Vision Navigation

Rose, Christopher (2017-12-11)

This dissertation develops a real-time implementation of rendering perspective and refocused imagery from a light field camera for the generation of sparse point clouds using a traditional stereo camera approach, a ...