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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
161

Flame Vortex Dynamics in a Model Ramjet Combustor

Crimmins, Chandler W 01 January 2020 (has links)
Previous research into the flame-vortex dynamics of bluff-body stabilized flames has helped to verify the characteristic flame-flow field and identify the effects of turbulence and pressure gradient tailoring. Such work has indicated that increases in a favorable pressure gradient will both increase the material acceleration of the flow and increase the total magnitude of vorticity seen in domain. This result is specifically tied to the increased baroclinicity of the flow. In addition, it has been shown that as the turbulence level of an incoming flow is increased, the vortex stretching transport term will come to dominate the flow dynamics. This results in the flow beginning to resemble the characteristics of a nonreacting case. In more specific terms, Bénard von Kármán vortex shedding, which is usually suppressed due to combustive heat release, will begin to reappear in the domain. To further cement and verify these conclusions, six experimental test cases were carried out to study the flame-vortex dynamics of a stoichiometric propane-air flame stabilized on a ballistic-type bluff body. Particle imaging velocimetry data was recorded using an optically accessible combustion facility. Velocity vector fields were derived using PIVLab software and further analyzed using both Eulerian and Lagrangian analysis methods. The results and analysis have been plotted and included within the following document.
162

Computation and Stability Analysis of Laminar Flow over a Blunt Cone in Hypersonic Flow

Esfahanian, Vahid January 1991 (has links)
No description available.
163

Structural Analysis and Design of Composite Isogrid Panels for Increased Buckling Efficiency

Meink, Troy Edward January 1995 (has links)
No description available.
164

A LABORATORY SCALE STUDY OF INTUMESCENT COATINGS FOR PROTECTION OF BUILDING STRUCTURE MEMBERS FROM FIRES

Fry, Zachary S. 29 August 2014 (has links)
No description available.
165

Design study of a high altitude morphing UAV with analysis of low Reynolds number parawing aerodynamics

Munther, Peter Antoine January 2006 (has links)
No description available.
166

Turbine Engine Control and Diagnostics

Siddiqi, Majid January 2005 (has links)
No description available.
167

Experimental Development and Investigation of Propeller / Jet Engine Interactions

Whitfield, Clifford A. January 2006 (has links)
No description available.
168

Control of Transient Unstart in Isolator of Scramjet

Omari, Dennis 14 August 2018 (has links)
No description available.
169

A unified approach to optimal energy management in hybrid vehicles

Brahma, Avra January 1999 (has links)
No description available.
170

Heat Transfer for a Stationary Serpentine Passage using a Transient Thermochromatic Liquid Crystal Paint Technique

Lawler, Timothy Robert January 2015 (has links)
No description available.

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