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  • AERODYNAMICS  (3)
  • Instrumentation and Photography
  • OCEANOGRAPHY
  • 1985-1989  (3)
  • 1
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    Unknown
    Empty test section streamlining of the transonic self-streamlining wind tunnel fitted with new walls (1988)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The original flexible top and bottom walls of the Transonic Self-Streamlining Wind Tunnel (TSWT), at the University of Southampton, have been replaced with new walls featuring a larger number of static pressure tappings and detailed mechanical improvements. This report describes the streamling method, results, and conclusions of a series of tests aimed at defining sets of aerodynamically straight wall contours for the new flexible walls. This procedure is a necessary prelude to model testing. The quality of data obtained compares favorably with the aerodynamically straight data obtained with the old walls. No operational difficulties were experienced with the new walls.
    Keywords: AERODYNAMICS
    Type: NASA-CR-181680 , NAS 1.26:181680 , AASU-MEMO-86/10
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 2
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    The status of two-dimensional testing at high transonic speeds in the University of Southampton transonic self-streamlining wind tunnel (1985)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: This report briefly outlines the progress made during the last 2 years in extending the operational range of the Transonic Self-Streamlining Wind Tunnel (at the University of Southampton) into high subsonic speeds. Analytical preparation completed in order to achieve such an extension is outlined and a summary of the preliminary model validation tests is presented. Future work necessary to allow further validation and development is discussed.
    Keywords: AERODYNAMICS
    Type: NASA-CR-3919 , NAS 1.26:3919
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 3
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    An evaluation in a modern wind tunnel of the transonic adaptive wall adjustment strategy developed by NPL in the 1940's (1988)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The first documented wind tunnel employing a flexible walled test section for the purpose of eliminating wall interference was constructed in England by the National Physical Laboratory (NPL) during the late 1930's. The tunnel was transonic and designed for two-dimensional testing. In an attempt to eliminate the top and bottom wall interference effects on the model NPL developed a strategy to adjust two flexible walls to streamlined shapes. This report covers an evaluation of the NPL wall adjustment strategy in a modern wind tunnel, e.g., the Transonic Self-Streamlining Wind Tunnel (TSWT) at the University of Southampton, England. The evaluation took the form of performance comparisons with other modern strategies which have been developed for use in, and proven in, the TSWT.
    Keywords: AERODYNAMICS
    Type: NASA-CR-181623 , NAS 1.26:181623 , AASU-86/11
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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