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Applications of Circulation Control Technologies, Volume 214 by R. Joslin, G. Jones

By R. Joslin, G. Jones

According to papers from the 2004 NASA/ONR move regulate Workshop, this assortment is a useful, distinct source at the state of the art in circulate regulate applied sciences and purposes. Filling the knowledge hole among 1986 -- whilst the final such symposium was once held -- and this present day, it summarizes the functions, experiments, computations and theories relating to stream keep watch over, emphasizing primary physics, platforms research and utilized learn. The papers offered hide a wide selection of aerodynamic and hydrodynamic purposes together with naval automobiles, fixed-wing aviation, V/STOL structures, propulsion structures and floor vehicles.Anyone with pursuits in utilized aerodynamics, fluid mechanics and plane layout will locate this publication of specific worth, as will these looking a an up to date reference paintings on movement regulate and its many present purposes.

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Extra resources for Applications of Circulation Control Technologies, Volume 214 (Progress in Astronautics and Aeronautics)

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ENGLAR CORRECTED mnm. F&, MS x 1 6 Fig. 20 Thrust performance of J-52-PSA turbojet engine with bleed. Both of these fixed-wing flight programs demonstrated the feasibility of CCW as an operational STOL system in terms of high lift, short takeoff and landing, and simplicity, but also identified issues still to be resolved. Among these were the drag of the device in cruise flight (WVU solved this but at the cost of a mechanical 180-deg rotating flap that stowed in the aft wing cavity, and GTRI solved it with the dual-radius airfoil discussed in Sec.

20. These results are similar to those found for the WVU CC Technology Demonstrator, although the A-6A has a greater percent of wing area equipped with CC blowing. The drawback of modifying an existing large aircraft is that the CC blowing system had to be an add-on-feature with no possibility for rounded trailing edge retraction to maintain its low-drag, high-speed cruise capability. The magnitude of the CC rounded trailing edge is clearly visible in a close-up photo; see Fig. 21 and in-flight Fig.

31 Lift augmentation on the GTRI HSCT/CCW semispan model with blown IV. Powered Lift and Engine Thrust Deflection A. CCW/USB Mechanical flaps have been employed to entrain and deflect thrust from engines mounted on the wing upper surface (upper surface blowing, USB), and it was envisioned that the entrainment capabilities of CCW could do the same without the mechanical complexity; thus the CCW/USB c o n ~ e p t ~ ' , ~was ~-~* born (Fig. 32). Subsonic wind-tunnel investigation^^^ at DTNSRDC showed no-moving-part pneumatic capability to entrain and turn USB engine thrust well past the 60 or so degrees of a mechanical USB system, but also continuing through 90 deg, and then rotating the thrust forward as a thrust reverser through 165 deg (Fig.

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