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Full-Text Articles in Engineering
Assessment Of Carbon-Phenolic-In-Air Chemistry Models For Atmospheric Reentry, Alexandre Martin, Iain D. Boyd
Assessment Of Carbon-Phenolic-In-Air Chemistry Models For Atmospheric Reentry, Alexandre Martin, Iain D. Boyd
Alexandre Martin
Recent and future re-entry vehicle designs use ablative material as the main component of the heat shield of their thermal protection system. In order to properly predict the behavior of the vehicle, it is imperative to take into account the gases produced by the ablation process when modeling the reacting flow environment. In the case of charring ablators, where an inner resin is pyrolyzed at a relatively low temperature, the composition of the gas expelled in the boundary layer is complex and might lead to thermal chemical reactions that cannot be captured with simple flow chemistry models. In order to …
Development Of Morphing Aircraft Structure Using Smp, Soo-Chan Jee
Development Of Morphing Aircraft Structure Using Smp, Soo-Chan Jee
Theses and Dissertations
The U.S Air Force needs new aircraft which provide longer flight time, less fuel consumption, better aerodynamics in order to perform Air Force missions successfully as the mission environment changes rapidly. A morphing wing aircraft is considered as a potential new aircraft for those missions. This thesis explores Shape Memory Polymer (SMP) properties test results and its application for morphing wing skin. Several SMP composite laminates were considered for investigating shape changing characteristics required for morphing skin. The braided composite preforms used in making SMP composites were explored in morphing wing operating system based on the results of property tests. …
Chemistry Model For Ablating Carbon-Phenolic Material During Atmospheric Re-Entry, Alexandre Martin, Iain D. Boyd, Ioana Cozmuta, Michael J. Wright
Chemistry Model For Ablating Carbon-Phenolic Material During Atmospheric Re-Entry, Alexandre Martin, Iain D. Boyd, Ioana Cozmuta, Michael J. Wright
Alexandre Martin
Recent and future re-entry vehicle designs, such as the CEV, use ablative material as the main component of the heat shield of their thermal protection system. In order to properly predict the behavior of the vehicle, it is imperative to take into account the gases produced by the ablation process when modeling the reacting flow environment. In the case of charring ablators, where an inner resin is pyrolyzed at a relatively low temperature, the composition of the gas expelled in the boundary layer is complex and might lead to thermal chemical reactions that cannot be captured with simple flow chemistry …
Analysis Of Wake Vortices Of A Medium Range Twin-Propeller Military Cargo Aircraft Using Statistically Designed Experiments, Burhan Sahin
Analysis Of Wake Vortices Of A Medium Range Twin-Propeller Military Cargo Aircraft Using Statistically Designed Experiments, Burhan Sahin
Mechanical & Aerospace Engineering Theses & Dissertations
An experimental study was initiated to analyze the trajectories of the streamwise vortices behind the wing tip and flap of a medium range and propeller driven twin-engine military cargo aircraft. The model used for the experimental study was a generic, high wing and half model of a propeller driven aircraft and mounted within Old Dominion University's Low Speed Wind Tunnel where the wind tunnel flow speed was set to constant value of 9 m/sec. The main purpose of the study was to reach regression models for the motion and vorticity strength of both vortices under varying factors such as angle …