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  • Aeronautics (General); Engineering (General)  (1)
  • Aircraft Design, Testing and Performance; Fluid Mechanics and Thermodynamics  (1)
  • Cybernetics, Artificial Intelligence and Robotics; Computer Programming and Software; Air Transportation and Safety  (1)
  • 1
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    UAM Research at NASA (2019)
    In:  CASI
    Details
    Publication Date: 2019-08-08
    Description: Presentation for Oshkosh 2019 describing UAM research at NASA
    Keywords: Aeronautics (General); Engineering (General)
    Type: ARC-E-DAA-TN70709 , EAA Airventure 2019; Jul 22, 2019 - Jul 28, 2019; Oshkosh, WI; United States
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Estimating Flow-Through Balance Momentum Tares with CFD (2016)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: This paper describes the process used for estimating flow-through balance momentum tares. The interaction of jet engine exhausts on the BOEINGERA Hybrid Wing Body (HWB) was simulated in the NFAC 40x80 wind tunnel at NASA Ames using a pair of turbine powered simulators (TPS). High-pressure air was passed through a flow-through balance and manifold before being delivered to the TPS units. The force and moment tares that result from the internal shear and pressure distribution were estimated using CFD. Validation of the CFD simulations for these complex internal flows is a challenge, given limited experimental data due to the complications of the internal geometry. Two CFD validation efforts are documented, and comparisons with experimental data from the final model installation are provided.
    Keywords: Aircraft Design, Testing and Performance; Fluid Mechanics and Thermodynamics
    Type: ARC-E-DAA-TN28731 , AIAA Science and Technology Forum and Exposition (SciTech 2016); Jan 04, 2016 - Jan 08, 2016; San Diego, CA; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Safe Autonomous Flight Environment (SAFE50) for the Notional Last 50 ft of Operation of 55 lb Class of UAS (2017)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The most difficult phase of small Unmanned Aerial System (sUAS) deployment is autonomous operations below the notional 50 ft in urban landscapes. Understanding the feasibility of safely flying sUAS autonomously below 50 ft is a game changer for many civilian applications. This paper outlines three areas of research currently underway which address key challenges for flight in the urban landscape. These are: (1) Off-line and On-board wind estimation and accommodation; (2) Real-time trajectory planning via characterization of obstacles using a LIDAR; (3) On-board information fusion for real-time decision-making and safe trajectory generation.
    Keywords: Cybernetics, Artificial Intelligence and Robotics; Computer Programming and Software; Air Transportation and Safety
    Type: ARC-E-DAA-TN38504 , SciTech 2017; Jan 09, 2017 - Jan 13, 2017; Grapevine, TX; United States
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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