Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"aero-propulsive"”.
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The effects of aero-propulsive coupling on aircraft with distributed propulsion systems
… Illinois at Urbana-Champaign to characterize the aeropropulsive coupling effects which are present for aircraft equipped with distributed electric propulsion (DEP) systems consisting of over-wing trailing-edge mounted (OWTE) arrays of ducted fans, and to identify the influence of those effects on …
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Aero-propulsive characteristics of an overwing distributed electric propulsion system with vectored thrust
… to cover 70.3% of the airfoil model span. Aerodynamic forces and moments were recorded for the airfoil in a static condition, as well as across a range of Reynolds numbers, angles of attack, tip speed ratios, and nozzle deflection angles. It was found that nozzle deflection led to a …
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Advances in Aero-Propulsive Modeling for Fixed-Wing and eVTOL Aircraft Using Experimental Data
… system identification applications, including: aero-propulsive model development for propeller aircraft and nonlinear dynamic model identification without mass properties. The second part of the dissertation builds on established fixed-wing and rotary-wing aircraft system identification methods …
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Effects of Aero-Propulsive Interactions for Various Wing Integration Techniques on Electric Ducted Fan Performance
This study explores the aero-propulsive coupling effects of wing blended electric ducted fans (EDF) lifting systems over the EDF unit. Wing blended EDFs and isolated EDF are on the rise as a solution to increase efficiency on regional mobility platforms. Electrification of platforms has permitted …
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Experimental and computational investigation of the transonic aero-propulsive interactions of an overwing ducted fan
The student, Matthew Lauer, submitted this Thesis for approval on 2021-04-21 at 15:17.
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Aerodynamic Modeling in Nonlinear Regions, including Stall Spins, for Fixed-Wing Unmanned Aircraft from Experimental Flight Data
… opportunities exist to create high-fidelity aerodynamic models with flight test techniques developed specifically for remotely piloted aircraft. Then, highly maneuverable unmanned aircraft can be employed to their greatest potential in a safe manner using advanced control laws. In this …
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Aircraft System Identification Approach for Control Surface Fault Diagnosis
… control allocation framework. A baseline aero-propulsive model for an experimental aircraft was developed from flight-test data to establish nominal control-effectiveness parameters used to compare fault diagnosis methods. Five real-time estimation methods were formulated and evaluated: …
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Rotor Wakes; Formations, Interactions, and Design
… creation of mission-tailored wakes for improved aero-propulsive integration. These goals are addressed through a series of experimental campaigns involving both ducted and unducted rotors in static and advancing configurations. Advanced flow diagnostics tools, such as stereoscopic particle image …
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Performance, Stability and Control of Electric Short Takeoff and Landing Aircraft
… configurations which take advantage of favorable aero-propulsive couplings. One such arrangement is the electrically blown wing, where the slipstream of distributed, electrically-driven propellers arranged along the wing lead edge is used to enhance the wing lifting capability, enabling reductions …