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  • 1
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    Vortex-flow aerodynamics - An emerging design capability (1981)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-18
    Beschreibung: Promising current theoretical and simulational developments in the field of leading edge vortex-generating delta, arrow ogival wings are reported, along with the history of theory and experiment leading to them. The effects of wing slenderness, leading edge nose radius, Mach number and incidence variations, and planform on the onset of vortex generation and redistribution of aerodynamic loads are considered. The range of design possibilities in this field are consequential for the future development of strategic aircraft, supersonic transports and commercial cargo aircraft which will possess low-speed, high-lift capability by virtue of leading edge vortex generation and control without recourse to heavy and expensive leading edge high-lift devices and compound airfoils. Attention is given to interactive graphics simulation devices recently developed.
    Schlagwort(e): AERODYNAMICS
    Materialart: Astronautics and Aeronautics; 19; May 1981
    Format: text
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  • 2
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    Leading-edge vortex research: Some nonplanar concepts and current challenges (1986)
    In:  CASI
    Details
    Publikationsdatum: 2016-06-07
    Beschreibung: Some background information is provided for the Vortex Flow Aerodynamics Conference and that current slender wing airplanes do not use variable leading edge geometry to improve transonic drag polar is shown. Highlights of some of the initial studies combining wing camber, or flaps, with vortex flow are presented. Current vortex flap studies were reviewed to show that there is a large subsonic data base and that transonic and supersonic generic studies have begun. There is a need for validated flow field solvers to calculate vortex/shock interactions at transonic and supersonic speeds. Many important research opportunities exist for fundamental vortex flow investigations and for designing advanced fighter concepts.
    Schlagwort(e): AERODYNAMICS
    Materialart: Vortex Flow Aerodynamics, Vol. 1; p 31-63
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Overview of powered-lift technology (1976)
    In:  CASI
    Details
    Publikationsdatum: 2016-06-07
    Beschreibung: The concept and application of powered lift and the effects of some fundamental design variables are discussed. A brief chronology of significant developments in the field is also presented and the direction of research efforts in recent years is indicated. All powered lift concepts are included, but emphasis is on the two externally blown schemes which involve blowing either above or below the wing and which are utilized in the YC-14 and YC-15 aircraft. Aerodynamics and vehicle design are emphasized. The areas of acoustics, propulsion, and loads are briefly considered.
    Schlagwort(e): AERODYNAMICS
    Materialart: NASA. Langley Res. Center Powered-Lift Aerodyn. and Acoustics; p 1-27
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Recent studies at NASA-Langley of vortical flows interacting with neighboring surfaces (1983)
    In:  CASI
    Details
    Publikationsdatum: 2017-10-02
    Beschreibung: The importance of leading edge vortical flows, which occur near and interact with neighboring surfaces, is stressed. Research in this area conducted or sponsored by the NASA Langley Research Center since 1978 is surveyed. Particular attention is given to the cumulative results of a number of theoretical and experimental studies. It is noted that these studies have been carried out in order to understand and use this kind of flow. Much of the work has been devoted to improving the lift-to-drag ratio and pitch characteristics for wings in this flow, although work has also been done on examining the unsteady and lateral characteristics.
    Schlagwort(e): AERODYNAMICS
    Materialart: AGARD Aerodyn. of Vortical Type Flows in Three Dimensions; 32 p
    Format: text
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  • 5
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    VERTICAL TAKEOFF AND LANDING AIRCRAFT (1962)
    In:  Other Sources
    Details
    Publikationsdatum: 2018-12-01
    Beschreibung: Book covering the development of vtol aircraft from the helicopter to gem - principles and problems of hovering flight
    Schlagwort(e): BIOSCIENCES
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 6
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    Medial forebrain bundle-lateral hypothalamic area and reinforcing brain stimulation. (1966)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-05-30
    Beschreibung: Medial forebrain bundle, lateral hypothalamic area and reinforcing brain stimulation, discussing self-stimulation
    Schlagwort(e): BIOSCIENCES
    Materialart: AMERICAN JOURNAL OF PHYSIOLOGY
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 7
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    STATUS OF V/STOL RESEARCH AND DEVELOPMENT IN THE UNITED STATES (1963)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-05-10
    Beschreibung: Current research and development of v/stol aircraft
    Schlagwort(e): BIOSCIENCES
    Materialart: AIAA PAPER 63-482
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
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    Recent studies at NASA-Langley of vortical flows interacting with neighboring surfaces (1983)
    In:  Other Sources
    Details
    Publikationsdatum: 2018-12-01
    Beschreibung: The importance of leadingedge vortical flows, which occur near and interact with neighboring surfaces, is stressed. Research in this area conducted or sponsored by the NASA Langley Research Center since 1978 is surveyed. Particular attention is given to the cumulative results of a number of theoretical and experimental studies. It is noted that these studies have been carried out in order to understand and use this kind of flow. Much of the work has been devoted to improving the lift-to-drag ratio and pitch characteristics for wings in this flow, although work has also been done on examining the unsteady and lateral characteristics.
    Schlagwort(e): AERODYNAMICS
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 9
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    Flow field survey and decelerator drag characteristics in the wake of a model of the X-15 airplane at Mach 2.30 and 4.65 (1966)
    In:  CASI
    Details
    Publikationsdatum: 2019-05-29
    Beschreibung: Flow field survey and decelerator drag characteristics in wake of model X-15 airplane at Mach 2.30 and 4.65
    Schlagwort(e): AERODYNAMICS
    Materialart: NASA-TN-D-3285
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 10
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    Ecology and thermal inactivation of microbes in and on interplanetary space vehicle components Second quarterly progress report, Jul. 1 - Sep. 30, 1965 (1965)
    In:  CASI
    Details
    Publikationsdatum: 2019-05-29
    Beschreibung: Recovery of bacteria, bacillus globigii spores from balsa wood and soluble plastic and toxicity of plastics - contamination studies
    Schlagwort(e): BIOSCIENCES
    Materialart: NASA-CR-69345
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
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