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

Now showing items 1-20 of 49

3-D Visualization of a Zero-Pressure Gradient Turbulent Boundary Layer

Williams, Steven (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

Benton, Daniel (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 ...

Aerodynamic Optimization for Freight Trucks Using a Genetic Algorithm and CFD

Doyle, Joshua (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 ...

Aerospace Design Optimization Using a Real Coded Genetic Algorithm

Dyer, John (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 ...

Ant Colony Optimization : An Alternative Heuristic for Aerospace Design Applications

Kiyak, Zachary (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 ...

Application of the Discontinuous Galerkin Method to Wake Vortex Flows

Watson, Robert, III (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 ...

Automated Nozzle Design through Axis-Symmetric Method of Characteristics Coupled with Chemical Kinetics

Young, Reid (2012-05-10)

A method of designing axis-symmetric nozzles with included finite-rate chemical kinetics has been developed. The use of the axis-symmetric method of characteristics coupled with finite-rate chemistry allows for the design ...

Civil UAV Type Certification: DoD Mishap Analysis 2000-2009 and FAA Certification Roadmap

Hundley, Joshua (2012-08-29)

The Federal Aviation Administration (FAA) has issued memorandums which support the use of flight activities which can demonstrate that proposed operation can be conducted at an acceptable level of safety. This paper ...

A Comparison of Artificial Viscosity Sensors for the Discontinuous Galerkin Method

Favors, Joshua (2013-08-20)

The following work focuses on the development of an explicit Runge-Kutta, discontinuous Galerkin finite element method for the nonlinear, hyperbolic Euler equations. The discontinuous Galerkin method is a control-volume ...

A Comparison of Particle Tracking and Sizing Using Plenoptic Imaging and Digital In-line Holography

Munz, Elise (2016-04-22)

Digital in-line holography and plenoptic photography are two techniques for single-shot, volumetric measurement of 3D particle fields. A preliminary comparison of the two methods is presented by applying plenoptic imaging ...

Computational Fluid Dynamics Simulation Of Chemically Reacting Gas Flows Through Microfibrous Materials

Duggirala, Ravi (2008-05-15)

This dissertation presents results of research efforts to propose a design space for new microfibrous materials with enhanced chemical reactivity with optimum pressure gradient. These microfibrous materials material are ...

Design and Testing of a Gas Distribution Method for Pulsed Inductive Thrusters

Miller, Robert (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 ...

Detached Eddy Simulations of a Simplified Tractor-Trailer Geometry

Ghuge, Harshavardhan (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 the Image Distance in a Plenoptic Camera

Thomason, Chelsea (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 uncertainty characterization of 3D particle location from refocused and perspective shifted plenoptic images

Hall, Elise (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 ...