Browsing Programs, Centers, and Institutes by Department "Aerospace Engineering"
Now showing items 1-20 of 27
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(1984)A steady state transonic airfoil analysis code has been modified to include the presence of a vortex near the airfoil. The objective was to provide quasi-steady analysis of blade/vortex interaction for studying or predicting ...
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Recently, a new beamed propulsion concept based on self-guiding of combined laser and particles beams has been proposed for interstellar travel. By firing high velocity neutral rubidium atoms at the spacecraft, speeds up ...
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(2012-04-20)Size dependent properties of Shape Memory Alloys (SMAs) in micro and nano scales have gained an increasing attention due to the existing and potential applications of SMAs in microelectromechanical systems (MEMS) and small ...
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GPS navigation systems and applications have transformed the way drivers get to their destination. With the guidance of a computer-generated voice, users can receive turn-by-turn directions without the dangerous distraction ...
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(1997)In the area of underwater vehicle design, the development of highly maneuverable vehicles is presently of interest with their design being based on the swimming techniques and anatomic structures of fish; primarily the ...
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Recent experiments have shown how distributed roughness fields have the potential to delay transition caused by large discrete roughness elements. This ‘shielding effect’ seems to indicate a shifting of the boundary layer ...
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(2012-07-11)Here we focus on the stability characteristics of a rectangular liquid-filled vessel. The position vector of the center of gravity of the liquid volume is derived and used to express the equilibrium angles of the vessel. ...
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(1976)The purpose of this project has been to evaluate and compare methods for predicting rotor performance. This evaluation suggests that rotor performance prediction can be accomplished using simple closed form algebraic ...
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(2014-12-08)This thesis presents an initial analysis on the use of electroencephalography and electromyography to control the thrust settings of a quadrotor. The OpenBCI neural interface is used to sample muscle activity on a subject's ...
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(1980)As relatively large models are often used in wind tunnel testing, the effects of the confining walls must be determined for effective test data correction. Corrections and predictions for flow about a flat plate normal to ...
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(2017-04-25)This study investigated the aeroelastic mechanics of a flexible flapping wing designed and implemented on a two-winged, flapping wing, robotic hummingbird capable of hovering. The investigation focused first on measuring ...
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(1976)A classical two-dimensional, bending-torsion flutter analysis of a reference airfoil in a cascade of infinite blades is performed. The unsteady airloads on the reference airfoil are predicted using a numerical lifting ...
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(2014-08-14)We study the effects of thermal non-equilibrium (TNE) in particular vibrational non-equilibrium, in decaying turbulence using direct numerical simulation (DNS). The exchange mechanism between molecular vibrational and ...
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(1980)A high altitude scientific balloon is a flexible structure where the shape and stress are dependent on the pressure differential across the envelope. When a balloon is floating at a constant altitude, the pressure distribution ...
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(1977)A recent development of the NASA Airfoil Research Program is a family of new high lift, low drag airfoils for application on general aviation aircraft. This study analyzes one of these airfoils, the 13% thick GA(W)-2, as ...
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(1979)This paper describes the results of the initial phase of a program being conducted to develop systems and procedures to maximize ballast and lifting gas usage on board an atmospheric research balloon. Computer programs, ...
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(2010-07-14)Magnetic nozzles must convert thermal or gyro energy of the plasma to thrust while also inducing plasma detachment in order to be effective. Plasma detachment and methods to induce plasma detachment are examined. In ...
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(2013-09-27)Due to its complex phase transformation behavior, a Shape Memory Polymer filled honeycomb composite has been proposed as an efficient material for skin on a morphing wing. This work develops a finite element model of the ...
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(2017-04-27)As unmanned aerial vehicles (UAVs) become more widely available, they are being applied to an ever-widening range of tasks, especially in areas that are inaccessible or dangerous to humans. Of particular interest is the ...
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The ocean is currently an extremely large and under-developed source of renewable energy. The recent interest in the Blue Economy has led the scientific community to increase investigations in sustainable oceanic energy ...