Browsing Auburn Theses and Dissertations by Department "Aerospace Engineering"
Now showing items 1-20 of 164
3-D Visualization of a Zero-Pressure Gradient Turbulent Boundary Layer
(2010-05-10)
The application of a novel technique for 3-D visualization of a zero-pressure gradient turbulent boundary layer is discussed. Measurements of a 1.65δ x 1.65δ x 1.65δ volume were taken at a flow speed of 96 ft/s, Reθ ~ 5900, ...
Accelerating Binary Genetic Algorithm Driven Missile Design Optimization Routine with a CUDA Coded Six Degrees-Of-Freedom Simulator
(2015-12-04)
Science and Engineering has benefited enormously from the advent of modern (digital) computing. As technology continues to grow, computation capability becomes exponentially faster, more reliable, and more efficient. While ...
Advanced Characterization of Shape Memory Polymers and Electrospun Conducting Polymers for Engineering Applications
(2023-12-06)
Smart materials are an attractive solution to low cost, low weight and high performance applications. They have multifunctional properties that can be controlled by external stimuli such as light, heat and electricity. ...
Aerodynamic Analysis of a Morphing Wing Using Vorticity Based Solver
(2019-07-16)
This study addresses an efficient approach to analyzing Variable Camber continuous trailing edge flaps (VCCTEF) wings, which mimics the concept of morphing or shape changing wings. The validation model used in this research ...
Aerodynamic loads and flow structures on a simultaneously rotating and pitching flat plate
(2023-12-04)
Unsteady flow separation and leading-edge vortices (LEV) profoundly impact the aerodynamics of insect wings, helicopter rotor blades, and similar systems. The dynamics of such systems depend on wing pitch rate and pivot ...
Aerodynamic loads over arbitrary bodies by method of integrated circulation
(2013-07-24)
A method for the application of vorticity based potential-flow solvers to unstructured surface meshes has been created. This method is designed to maintain the advantages of the vorticity based solvers while removing the ...
Aerodynamic Optimization for Freight Trucks Using a Genetic Algorithm and CFD
(2007-12-15)
A computational fluid dynamics (CFD) code is being combined with a genetic algorithm (GA) to perform a two-dimensional drag minimization study on tractor trailers. This paper involves the minimization of drag on two different ...
Aerodynamic Optimization of Integrated Wing-Engine Geometry Using an Unstructured Vorticity Solver
(2015-05-29)
A high fidelity surface vorticity solver in conjunction with an optimizer is used to find optimal solutions for engine integration. The case study for this paper is an aerodynamically optimized engine configuration added ...
Aerodynamic Testing of a Circular Planform Concept Aircraft
(2008-08-15)
Auburn University has entered into collaboration with Geobat Flying Saucer Aviation Inc. for aerodynamic and flow visualization studies of the Geobat aircraft. The aircraft model that was tested consisted of a circular ...
Aerodynamics of Wings in Tandem at Low Reynolds Numbers
(2023-12-07)
The aerodynamic interactions between two wings of NACA0012 section arranged in tandem configuration were experimentally investigated at low Reynolds number of 20,000 and 100,000 in the wind tunnel and water tunnel. The ...
Aerodynamics of Wrap-Around Fins in Supersonic Flow
(2005-12-15)
Existing supersonic fin theory has been modified to compute the pressure distribution over a wrap-around fin. Evvard’s theory has been used to calculate the pressure loading due to angle-of-attack on a wrap-around fin by ...
Aerospace Design Optimization Using A Compound Repulsive Particle Swarm
(2011-04-06)
This study compares contemporary design optimization algorithms for use in missile design applications. The engineering design problem for this study is the development of a desired single stage solid propellant missile ...
Aerospace Design Optimization Using a Real Coded Genetic Algorithm
(2008-05-15)
This study demonstrates the advantages of using a real coded genetic algorithm (GA) for aerospace engineering design applications. A real coded GA was written from first principles for this study and the source code can ...
Angles-Only Initial Relative-Orbit Determination via Successive Maneuvers
(2016-04-29)
For relative-orbit determination using linear, Cartesian dynamics, angles-only measurements are not sufficient. A known, impulsive maneuver performed by either the observer or resident space object can provide observability. ...
Anomaly Resilience, Detection, and Reaction in Astrodynamics Problems
(2024-07-31)
This manuscript is divided into three parts, each associated with three of the main projects I undertook throughout my doctoral journey. In particular, this dissertation focuses on the topics of anomaly resilience, detection, ...
Ant Colony Optimization : An Alternative Heuristic for Aerospace Design Applications
(2014-01-09)
A modified ant colony optimization (ACO) algorithm is applied to a set of solid-rocket-motor and single-stage solid missile design problems. A local search procedure is also integrated with the algorithm, adding a search ...
The Application of a Particle Filter to Urban Ground Target Localization, Tracking, and Intercept
(2012-05-01)
Ground vehicle localization is a problem of significance in an urban setting given the recent global conflicts, security interests, and rapid growth of sensor networks. This task is often difficult due to the lack of ...
Application of the Discontinuous Galerkin Method to Wake Vortex Flows
(2015-02-19)
A code was developed that utilizes the discontinuous Galerkin method to solve the
Euler equations while utilizing a modal arti cial viscosity sensor developed by Klockner [12].
The sensor was augmented for the purpose ...
Application of the Finite Fourier Series for Smooth Motion Planning of Quadrotors
(2023-07-26)
Motion planning and control system design are crucial in the development of unmanned aerial vehicles (UAVs) for various applications. To maximize the mission performance, trajectory design is often performed to minimize ...
Application of the Level Set Method to Solid Rocket Motor Simulation
(2012-04-19)
The body of work encompassed in this thesis merges two advanced concepts for developing
flow solutions with level sets to develop an accurate and e cient method for simulating solid rocket motor grain regression. The ...