Wind Tunnels of NASAScientific and Technical Information Branch, National Aeronautics and Space Administration, 1981 - 154 страница |
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aero aerodynamicists aeronautical air velocity aircraft design airflow airfoil airspeeds airstream Ames atmosphere bomber boundary layer building Center compressor computers craft cruise cryogenic diaphragm drag dynamic electric energy engine feet per second fighter flight testing flying full-scale fuselage glider heat heater helium high-pressure high-speed tunnel hypersonic Langley's laser launch vehicles Lewis lift lift forces Ludwieg tube Mach numbers military missiles NACA wind tunnel NACA's NASA National Physical Laboratory National Transonic Facility nozzle Photo pilot plane pressure tunnel problem propeller propulsion ramjet ratio reentry rocket SCRAMJET shock tube shock wave simulate sonic Space Shuttle spacecraft speeds spin STOL subsonic supercritical supercritical wing supersonic transports supersonic tunnel supersonic wind tunnel surface tank temperatures test gas test section tion transonic tunnel built tunnel operated tunnel walls turbulence upstream V/STOL vacuum sphere variable density tunnel VTOL wind tunnel design wind tunnel tests wing Wrights
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Страница 11 - Aeronautics to supervise and direct the scientific study of the problems of flight, with a view to their practical solution...
Страница 11 - ... the increasing needs of the very rapid development already under way, stimulated by the unusual conditions existing in Europe, the facilities and technical assistance recommended are essential. While the needs at present are principally those which have an important bearing on military preparedness, the committee is of the opinion that aeronautics has made such rapid strides that when the war is over there will be found available classes of aircraft and a trained personnel for their operation,...
Страница 15 - The only people so far who have been able to get at something like accurate results from wind tunnel experiments are the workers at the experimental station at Langley Field.
Страница 3 - The most important general inference from these experiments, as a whole, is that, so far as the mere power to sustain heavy bodies in the air by mechanical flight goes, such mechanical flight is possible with engines we now possess...
Страница 4 - Having set out with absolute faith in the existing scientific data, we were driven to doubt one thing after another, till finally, after two years of experiment, we cast it all aside, and decided to rely entirely upon our own investigations.
Страница 5 - Flyer has been rebuilt and is now on display at the National Air and Space Museum in Washington, DC The rebuilt W right Flyer in the National Air and Space Museum.
Страница 107 - At the behest of the test operator, various plots and displays can be generated almost instantaneously for real-time evaluation. Parameters being measured can be compared within 2 seconds with theoretical expectations or with data from previous runs by calling in information stored in memory banks. Old-timers in wind tunnel research can recall how, back in the 1920s, the two engineers with the sharpest eyes would peer through tunnel observation ports, read the balance scales, and call out their readings...
Страница 56 - Auxiliary equipment building 8 x 7-foot supersonic test section 11 x 11-foot transonic test section Office building By-pass piping to an air injector Flow diversion valve 9 x 7-foot supersonic test section The Ames Unitary Plan wind tunnel actually consisted of three separate test sections fed by a centralized power source. One test section was transonic; the other two were supersonic. A 1 i '6- scale model in the Ames 11 -foot Unitary Plan transonic tunnel.