Browsing Auburn University Graduate School by Department "Aerospace Engineering"
Now showing items 41-60 of 173
Computational Vorticoacoustic Stability Analysis of the Bidirectional Vortex Engine
(2016-05-04)
Since the invention of combustion-based propulsion systems, the presence of resonating, broadband waves has often been associated with the onset of a phenomenon known as "combustion instability." These waves commonly take ...
Conceptual Design Optimization of an Augmented Stability Aircraft Incorporating Dynamic Response Performance Constraints
(2014-12-10)
This research focused on incorporating stability and control into a multidisciplinary design optimization on a Boeing 737-class advanced concept called the D8.2b. A new method of evaluating the aircraft handling performance ...
Control System Development for Autonomous Aerobatic Maneuvering with a Fixed-Wing Aircraft
(2014-12-04)
The increasing popularity of unmanned aircraft today has led to the development of more sophisticated vehicles with greater operating capabilities. The multirole nature of many civil and military unmanned aircraft along ...
Control Volume Analysis of Rectangular Ducts with Arbitrary Mean-Flow, Transverse Wall Impedances, and Temperature Discontinuity
(2020-04-20)
Combustion instabilities (CIs) are a consistent and ubiquitous problem for industrial burners, rockets, and gas turbines. Reduced order acoustic models are often used to analyze combustion instabilities. Typically, reduced ...
Design and Construction of a Mach 2 Wind Tunnel For Cavity Acoustics Research
(2013-04-17)
Cavity flow is encountered in many practical applications of ground and air vehicles operating at high speed. Examples include airflow past open windows, sunroofs, and wheel-wells of automobiles as well as landing gear and ...
Design and Instrument Characterization of the High-Energy Resolution relativistic electron Telescope (HERT) using Geant4 Simulation
(2023-04-17)
Earth’s outer radiation belt is filled with relativistic and ultrarelativistic electrons in the MeV energy range and above. These highly energetic electrons pose significant threats to avionics and humans in space, and ...
Design and Testing of a Gas Distribution Method for Pulsed Inductive Thrusters
(2008-12-15)
A gas distribution manifold for use in a Pulsed Inductive Thruster has been designed and tested. The Argon test gas is distributed radially outward over a flat disc from an enclosed manifold area. The manifold was designed ...
Design of a Guidance Controller Using Network Topology
(2016-08-05)
In dynamic environments, the control of a formation of unmanned vehicles remains a significant control problem on both network and guidance dynamics levels. Currently, formations of unmanned vehicles require multiple ground ...
Design Optimization of Space Launch Vehicles Using a Genetic Algorithm
(2007-08-15)
The United States Air Force (USAF) continues to have a need for assured access to space. In addition to flexible and responsive spacelift, a reduction in the cost per launch of space launch vehicles is also desirable. ...
Design Tool Development for Liquid Propellant Missile Systems
(2007-05-15)
The use of computer programs driven by genetic algorithms (GA’s) has become an increasingly popular method of optimizing engineering designs. This thesis focuses on the modeling and optimization of liquid rocket engine ...
Detached Eddy Simulations of a Simplified Tractor-Trailer Geometry
(2007-05-15)
This thesis presents a comparison of the results from the Detached Eddy Simulation (DES) turbulence model used for modeling flow over a {1/8}$^{th}$ scale simplified model of a tractor-trailer geometry (or the Ground ...
Determination of Key Parameters for Reverse Engineering Solid Rocket Powered Missiles
(2006-12-15)
This thesis examines the process of reverse engineering solid rocket powered missiles using legacy codes and a genetic algorithm (GA). Available data for reverse engineering problems might include performance characteristics ...
Determination of the Image Distance in a Plenoptic Camera
(2014-12-09)
Two methods for determining the distance between the lens of a plenoptic camera and the focal plane, known as the image distance, are presented and tested. The plenoptic
camera is a form of light field imaging, which seeks ...
Development and applications of machine learning frameworks for dynamic emulation of aerospace multiphysics problems and characterization of microstructure
(2024-04-23)
Future challenges in aerospace problems, spanning space exploration and military aircraft, demand advancements in several areas, including in-space 3D printing, high-performance missile technology, and rapid structural ...
Development and Evaluation of Space-Resilient Polymers: Additively Manufacturable Polymer- Lunar Regolith Composites and Shape Memory Deployable Space Structures
(2025-07-31)
This thesis investigates two crucial areas related to polymer applications in space: the development of 3D printable polymer-lunar regolith composites for in-situ resource utilization (ISRU) and the long-term performance ...
Development and Implementation of a Trajectory Prediction Methodology
(2012-04-16)
Operation of unmanned aircraft in the United States' National Airspace System (NAS) is currently severely restricted, primarily due to the need to ensure adequate separation between manned and unmanned aircraft (UA). A ...
Development and uncertainty characterization of 3D particle location from refocused and perspective shifted plenoptic images
(2019-06-13)
In recent years, the development of non-invasive 3D diagnostics has become a significant
area of research due to the wide variety of available techniques and the multitude of engineering
problems that benefit from these ...
Development of 3D Background Oriented Schlieren with a Plenoptic Camera
(2015-07-30)
This dissertation investigates a novel idea of implementing background oriented schlieren (BOS) with a plenoptic camera along with its application for 3-dimensional (3D) density measurement and for depth perception (DP) ...
Development of a 3-D Fluid Velocimetry Technique based on Light Field Imaging
(2011-05-04)
A novel method for performing 3-D particle image velocimetry is developed and demonstrated. The technique is based on light field photography, which uses a dense lenslet array mounted near a camera sensor to simultaneously ...
Development of a Direct Density Measurement Technique for Aero-Optic Analysis of a High-Velocity, Compressible Flow Field
(2011-04-28)
A direct density measurement technique was developed for high-velocity, compressible flow fields using acetone planar laser induced fluorescence (PLIF). Motivation for this work was mainly aero-optics. A 4” x 4” transonic ...