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  • 1
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    Effects of blowing on delta wing vortices during dynamic pitching (1993)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Keywords: AERODYNAMICS
    Type: Journal of Aircraft (ISSN 0021-8669); 30; 3; p. 334-339.
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Air Force electrochemical impregnation process results (1978)
    In:  CASI
    Details
    Publication Date: 2006-01-12
    Description: The status of the Air Force Electrochemical program was reviewed. The performance characteristics of the system was attributed to the use of an electrochemical impregnation process. The electrode improvements, the prototype equipment designs, and the actual construction of a production facility are discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center 11th Ann. Battery Workshop; p 303-308
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    An evaluation of preliminary Doppler global velocimetry measurements (1991)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: A review of Doppler Global Velocimetry (DGV) data obtained during wind tunnel tests on a 75 degree swept delta wing was performed. High frequency variations observed in normalized data files are attributed to image alignment problems. Unfortunately, initial DGV velocity data compared poorly with baseline reference data. Nonlinear DGV system operation during the tests is the likely source of this problem. Corrected data compares much more favorably and suggests that DGV is a valid measurement technique. Future DGV investigations should include a method or means for monitoring laser frequency relative to the ALF transfer function behavior.
    Keywords: AERODYNAMICS
    Type: Old Dominion Univ., NASA/American Society for Engineering Ed; Old Dominion Univ.,
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Nickel hydrogen cells, an historic overview (1981)
    In:  Other Sources
    Details
    Publication Date: 2016-06-07
    Description: The development of the nickel hydrogen battery system was primarily for replacement of the nickel cadmium battery and for space power systems. A chronological review of the major events and milestones leading up to the current system status is summarized.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1980 Goddard Space Flight Center Battery Workshop; p 391-397
    Format: text
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  • 5
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    Lightweight 50A h case design (1981)
    In:  Other Sources
    Details
    Publication Date: 2016-06-07
    Description: Reduction of weight in the cell container and incorporation of compression seals are described. Design geometry is standard NASA 50A h geometry. The unit was pressurized to 100 psig. The yield point was not achieved. The case weighs 150 g.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1980 Goddard Space Flight Center Battery Workshop; p 225-228
    Format: text
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  • 6
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    The effects of blowing on delta wing vortices during dynamic pitching at high angles of attack (1992)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: An experimental investigation was conducted in a water tunnel to identify the effects of apex blowing on two delta-wing models undergoing constant pitch-rate motion. One wing was of 60-degree sweep and the other was of 76-degree sweep. Flow visualization methods were utilized to determine vortex burst locations for a wide range of pitch-up (nose up) and plunge (nose down) rates, apex jet strengths, and blowing directions. Results indicate that blowing along the 60-degree wing vortex core or along the 76-degree wing centerline results in a notable improvement in vortex behavior under both static and dynamic conditions. The results are most dramatic during dynamic plunging (nose down) conditions, where blowing resulted in the reformation of vortices with significant length.
    Keywords: AERODYNAMICS
    Type: AIAA PAPER 92-0407
    Format: text
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  • 7
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    Air Force nickel-hydrogen flight experiment (1980)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: A gas leakage test, a capacity test, a charge retention test, and an electrolyte leakage test were among the tests conducted on a nickel hydrogen battery in a flight environment. The battery design features and its performance in each test are discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1979 Goddard Space Flight Center Battery Workshop; p 515-524
    Format: application/pdf
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  • 8
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    Aerospace electrode line (1980)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: A facility which produces electrodes for spacecraft power supplies is described. The electrode assembly procedures are discussed. A number of design features in the production process are reported including a batch operation mode and an independent equipment module design approach for transfering the electrode materials from process tank to process tank.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1979 Goddard Space Flight Center Battery Workshop; p 487-491
    Format: application/pdf
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  • 9
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    Some effects of cruise speed and engine matching of supersonic inlet design (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: An analytical study was conducted to determine the impact of flight Mach number on inlet type selection for a supersonic cruise aircraft. External and mixed-compression axisymmetric and two-dimensional inlets were considered. The internal contraction of the mixed-compression inlets was limited to achieve self-starting. At Mach 2.0, the axisymmetric mixed-compression inlet provided the best aircraft range. At Mach 2.3, the two-dimensional mixed-compression inlet was the most attractive if enough variable geometry were incorporated to minimize spillage during subsonic cruise. Increases in takeoff-to-cruise air flow ratio gave lower aircraft range.
    Keywords: AERODYNAMICS
    Type: AIAA PAPER 80-1807 , Aircraft Systems Meeting; Aug 04, 1980 - Aug 06, 1980; Anaheim, CA
    Format: text
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