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 7 of 7 for “"three-bladed"”.
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Three-Bladed Propeller Design for the Reduction of General Aviation Radiated Noise Characteristics
… purpose of this study was to design a quiet 3-Bladed propeller for general aviation aircraft. A combination of design technique and analytical predictions using the NASA Aircraft Noise Prediction Program - Propeller Analysis System (ANOPP-PAS) was used to achieve this goal. The propellers were …
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Analytical Prediction and Experimental Verification of Blade Loads Experienced by Two, Three-Bladed, Fixed Pitch, Horizontal Axis Wind Turbines
<p>Wind turbine blade structural designers need measured blade structural load data to project blade life. These data are necessary to validate analytical predicton models and to optimize advanced blade structural designs. The objective of this work is to furnish designers current blade load data …
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Experiments and numerical simulations of the dynamics of an R.O.V. thruster during maneuvering
… and inflow velocity. Test runs were made using a three bladed propeller. Experiments were preformed on a thruster from the ROV Jason using the water tunnel at the Massachusetts Institute of Technology. The thruster incorporated a ducted three bladed propeller. Runs were made using step changes in …
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Computational and Experimental Study on Vertical Axis Wind Turbine in Search for an Efficient Design
… of NACA5510, NACA7510 and semicircular rotors of three bladed are fabricated and tested in-house subsonic wind tunnel. From these experiments dynamic torque has been measured using dynamic torque sensors for all these models at three different speeds. By comparing the numerical and experimental …
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Design of Large Wind Turbine Rotors Through Passive and Active Load Mitigation Strategies
… and flutter mode characteristics for two- and three-bladed wind turbine blade designs is carried out. Further, a study is performed to evaluate mitigation of flutter in the design process via structural redesign by evaluating the effect of leadingvi edge and trailing edge reinforcement on …
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Experimental Investigation of Flow Control Techniques To Reduce Hydroacoustic Rotor-Stator Interaction Noise
… interaction noise sources. Two of the three flow control configurations applied to the flow involved the application of active flow control to the leading edge of a single exit guide vane (EGV) mounted downstream of a seven-bladed rotor. The leading edge blowing configuration (LEB) …
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The effect of turboprop propulsion on the aerodynamic benefits of formation flight
… aerodynamic benefits of formation flight, the three-bladed single turboprop engine Lancair Propjet, the six-bladed twin turboprop engine ATR 72 and the four-bladed four engine Lockheed Martin P-3 Orion were selected for comparative simulations. As extended formation flight makes use of aircraft …