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  • Research and Support Facilities (Air)  (3)
  • 2000-2004  (1)
  • 1995-1999  (2)
  • 1960-1964
  • 1
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    New Spray Bar System Installed in NASA Lewis' Icing Research Tunnel (1998)
    In:  CASI
    Details
    Publication Date: 2018-06-05
    Description: NASA Lewis Research Center's Icing Research Tunnel (IRT) is the world's largest refrigerated wind tunnel dedicated to the study of aircraft icing. In the IRT, natural icing conditions are duplicated to test the effects of in-flight icing on actual aircraft components and on scale models of airplanes and helicopters. The IRT's ability to reproduce a natural icing cloud was significantly improved with the recent installation of a new spray bar system. It is the spray bar system that transforms the low-speed wind tunnel into an icing wind tunnel by producing microscopic droplets of water and injecting them into the wind tunnel air stream in order to accurately simulate cloud moisture.
    Keywords: Research and Support Facilities (Air)
    Type: Research and Technology 1997; NASA/TM-1998-206312
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    New Icing Cloud Simulation System at the NASA Glenn Research Center Icing Research Tunnel (1999)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A new spray bar system was designed, fabricated, and installed in the NASA Glenn Research Center's Icing Research Tunnel (IRT). This system is key to the IRT's ability to do aircraft in-flight icing cloud simulation. The performance goals and requirements levied on the design of the new spray bar system included increased size of the uniform icing cloud in the IRT test section, faster system response time, and increased coverage of icing conditions as defined in Appendix C of the Federal Aviation Regulation (FAR), Part 25 and Part 29. Through significant changes to the mechanical and electrical designs of the previous-generation spray bar system, the performance goals and requirements were realized. Postinstallation aerodynamic and icing cloud calibrations were performed to quantify the changes and improvements made to the IRT test section flow quality and icing cloud characteristics. The new and improved capability to simulate aircraft encounters with in-flight icing clouds ensures that the 1RT will continue to provide a satisfactory icing ground-test simulation method to the aeronautics community.
    Keywords: Research and Support Facilities (Air)
    Type: NASA/TM-1999-208891 , NAS 1.15:208891 , AIAA Paper 98-0143 , E-11477 , Aerospace Sciences; Jan 12, 1998 - Jan 15, 1998; Reno, NV; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Overview of the Icing and Flow Quality Improvements Program for the NASA Glenn Icing Research Tunnel (2001)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Major upgrades were made in 1999 to the 6- by 9-Foot (1.8- by 2.7-m) Icing Research Tunnel (IRT) at the NASA Glenn Research Center. These included replacement of the electronic controls for the variable-speed drive motor, replacement of the heat exchanger, complete replacement and enlargement of the leg of the tunnel containing the new heat-exchanger, the addition of flow-expanding and flow-contracting turning vanes upstream and downstream of the heat exchanger, respectively, and the addition of fan outlet guide vanes (OGV's). This paper describes the rationale behind this latest program of IRT upgrades and the program's requirements and goals. An overview is given of the scope of work undertaken by the design and construction contractors, the scale-model IRT (SMIRT) design verification program, the comprehensive reactivation test program initiated upon completion of construction, and the overall management approach followed.
    Keywords: Research and Support Facilities (Air)
    Type: NASA/TM-2001-210686 , NAS 1.15:210686 , E-12613 , AIAA Paper 2001-0229 , 39th Aerospace Sciences Meeting and Exhibit; Jan 08, 2001 - Jan 11, 2001; Reno, NV; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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