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  • 1
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    Flow Field Characterization of an Angled Supersonic Jet Near a Bluff Body (2011)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: An experiment was performed to acquire data from a hot supersonic jet in cross flow for the purpose of validating computational fluid dynamics (CFD) turbulence modeling relevant to the Orion Launch Abort System. Hot jet conditions were at the highest temperature and pressure that could be acquired in the test facility. The nozzle pressure ratio was 28.5, and the nozzle temperature ratio was 3. These conditions are different from those of the flight vehicle, but sufficiently high to model the observed turbulence features. Stereo Particle Image Velocimetry (SPIV) data and capsule pressure data are presented. Features of the flow field are presented and discussed
    Keywords: Aerodynamics
    Type: NASA/TM-2011-216958 , AIAA Paper 2010-4829 , E-17563 , 28th AIAA Applied Aerodynamics Conference; Jun 28, 2010 - Jul 01, 2010; Chicago, IL; United States
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Airships 101: Rediscovering the Potential of Lighter-Than-Air (LTA) (2012)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: An overview of airships past, present, and future is provided in a Powerpoint-formatted presentation. This presentation was requested for transfer to the British MOD by Paul Espinosa of NASA Ames, Code PX. The presentation provides general information about airships divided into four main categories: the legacy of NASA Ames in LTA (Lighter-Than-Air), LTA taxonomy and theory, LTA revival and missions, and LTA research and technology.
    Keywords: Aeronautics (General)
    Type: ARC-E-DAA-TN4810
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 3
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    Validation of CFD Codes for Parawing Geometries in Subsonic to Supersonic Flows (2014)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: Computational Fluid Dynamic studies of a rigid parawing at Mach numbers from 0.8 to 4.65 were carried out using three established inviscid, viscous and independent panel method codes. Pressure distributions along four chordwise sections of the wing were compared to experimental wind tunnel data gathered from NASA technical reports. Results show good prediction of the overall trends and magnitudes of the pressure distributions for the inviscid and viscous solvers. Pressure results for the panel method code diverge from test data at large angles of attack due to shock interaction phenomena. Trends in the flow behavior and their effect on the integrated force and moments on this type of wing are examined in detail using the inviscid CFD code results.
    Keywords: Computer Programming and Software; Fluid Mechanics and Thermodynamics; Aircraft Design, Testing and Performance
    Type: NASA/TM-2014-218300 , ARC-E-DAA-TN14829
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 4
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    Modeling and Simulation for Airship Design and Operations (2013)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The presentation discusses the role of modeling and simulation in evaluating airship designs and operations and presents current work and competencies at NASA Ames Research Center in these areas.
    Keywords: Air Transportation and Safety; Research and Support Facilities (Air)
    Type: ARC-E-DAA-TN10220 , Cargo Airships for Northern Operations Workshop; Jul 10, 2013 - Jul 12, 2013; Anchorage, Alaska; United States
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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