Browsing by Author "Burkhalter, John"

Now showing items 1-12 of 12

Aerodynamic loads over arbitrary bodies by method of integrated circulation

Ahuja, Vivek (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 ...

Aerodynamics of Wrap-Around Fins in Supersonic Flow

Wilks, Brett (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 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 ...

Application of the Level Set Method to Solid Rocket Motor Simulation

Albarado, Kevin (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 ...

Design Optimization of Space Launch Vehicles Using a Genetic Algorithm

Bayley, Douglas (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

Riddle, David (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 ...

Determination of Key Parameters for Reverse Engineering Solid Rocket Powered Missiles

Metts, Jonathan (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 ...

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 ...

Integration of Grid Fins for the Optimal Design of Missile Systems

Ledlow, Timothy, II (2014-05-02)

Grid fins are unconventional missile control and stabilization devices that produce unique aerodynamic characteristics that are vastly different from that of the conventional planar fin. History has shown that grid fins ...

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. ...

Optimization of Fuel-Air Mixing for a Scramjet Combustor Geometry Using CFD and a Genetic Algorithm

Ahuja, Vivek (2008-12-15)

A new methodology for the optimization of fuel-air mixing in a scramjet combustor using integrated Genetic Algorithms and Computational Fluid Dynamics is presented. A typical combustor design involving Mach 2 crossflow ...

Propeller Performance Analysis and Multidisciplinary Optimization Using a Genetic Algorithm

Burger, Christoph (2007-12-15)

A propeller performance analysis program has been developed and integrated into a Genetic Algorithm for design optimization. The design tool will produce optimal propeller geometries for a given goal, which includes ...