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  • Other Sources  (5)
  • 1990-1994  (3)
  • 1970-1974  (1)
  • 1945-1949  (1)
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  • 1
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    Triangular wings cambered and twisted to support specified distributions of lift at supersonic speeds (1949)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Type: NACA-TN-1816
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    A one-equation turbulence transport model for high Reynolds number wall-bounded flows (1991)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: A one-equation turbulence model that avoids the need for an algebraic length scale is derived from a simplified form of the standard-k-epsilon model equations. After calibration based on well established properties of the flow over a flat plate, predictions of several other flows are compared with experiment. The preliminary results presented indicate that the model has predictive and numerical properties of sufficient interest to merit further investigation and refinement. The one-equation model is also analyzed numerically and robust solution methods are presented.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: AIAA PAPER 91-0610
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    A one-equation turbulence transport model for high Reynolds number wall-bounded flows (1990)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A one-equation turbulence model that avoids the need for an algebraic length scale is derived from a simplified form of the standard k-epsilon model equations. After calibration based on well established properties of the flow over a flat plate, predictions of several other flows are compared with experiment. The preliminary results presented indicate that the model has predictive and numerical properties of sufficient interest to merit further investigation and refinement. The one-equation model is also analyzed numerically and robust solution methods are presented.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NASA-TM-102847 , A-90231 , NAS 1.15:102847
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Simulation Of Turbulent, Oscillating Boundary Layer (1990)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Numerical results support predictions of simplified theories. Report discusses aspects of algebraic and numerical modeling of flow in infinite half space on one side of infinitely-large, flat plate, with sinusoidally oscillating free-stream velocity along one axis of plate. Flow has rich variety of behaviors, including strong gradients of pressure, points of inflection, and reversal.
    Keywords: MECHANICS
    Type: ARC-11858 , NASA Tech Briefs (ISSN 0145-319X); 14; 7; P. 73
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    The development of sine vibration test requirements for Viking lander capsule components (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: In connection with the Viking project for exploring the planet Mars, two identical spacecraft, each consisting of an orbiter and a lander, will be launched in the third quarter of 1975. Upon arrival at the planet, the Viking lander will separate from the Viking orbiter and descend to a soft landing at a selected site on the Mars surface. It was decided to perform a sine vibration test on the Viking spacecraft, in its launch configuration, to qualify it for the booster-induced transient-dynamic environment. It is shown that component-level testing is a cost- and schedule-effective prerequisite to the system-level, sine-vibration test sequences.
    Keywords: SPACE VEHICLES
    Type: Annual Meeting on the Cost effectiveness in the environmental sciences; Apr 28, 1974 - May 01, 1974; Washington, DC
    Format: text
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    NASA TECHNICAL REPORTS
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