Global ETD Search
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Showing 1 to 4 of 4 for “"Pulsed-flow"”.
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Time-Resolved Analysis of Circulation Control over Supercritical Airfoil using Digital Particle Image Velocimetry (DPIV)
Active pneumatic flow control methods as applied to aerospace applications have shown noteworthy improvements in lift compared to traditional means. The General Aviation Circulation Control (GACC) concept currently under investigation at NASA's Langley Research Center (LaRC) is an attempt at …
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Local instantaneous convective heat transfer characteristics from mechanical and supply pulsed radial reattaching nozzles
… gap height (0.05 and 0.13), non-dimensional flow guide height (0.8 and 1.16), mechanical pulsation rate (5 and 10 Hz), supply pulsation rate (10, 20, 30, and 40 Hz), phase angle (0° and 180°), and Reynolds number (1683 and 2366). Air was forced through a supply pulsation mechanism and then …
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Reaction Control Jet Actuators for Air-Breathing Hypersonic Vehicles
… between an RC jet, and a hypersonic crossflow. A generic hypersonic vehicle model was used to investigate flight conditions where supplementary control may be required. Due to the instability caused by propulsion-pitch coupling, aerodynamic control surfaces alone are unable to control the …
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Hydrodynamic Techniques for Fouling Control in Membrane Systems
L'abstract è presente nell'allegato / the abstract is in the attachment