Geometric near-field characteristics of supersonic jets: Full and laboratory scales

ORAL

Abstract

Sound pressure measurements were made in the geometric near field of a full-scale jet installed on a military aircraft. In this work, levels at 11.7 m (near the 42-ft foul line) are reported. Weighting curves that account for listener factors are applied to the overall sound pressure level, including A-weighting, C-weighting, and D-weighting. In addition, the effect of representative double hearing protection on A-weighted overall level is shown.A useful limited comparison is made between a laboratory-scale, Mach-2.0, unheated jet and the full-scale jet engine at the same scaled distance from the jet centerline.

*SBIR DATA RIGHTS - (DFARS 252.227-7018 (JUNE 1995)); Contract Number: FA8650-08-C-6843; Contractor Name and Address: Blue Ridge Research and Consulting, LLC, 15 W Walnut St. Suite C; Asheville, NC Expiration of SBIR Data Rights Period: March 17, 2016 (Sub

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Authors

  • Jazz Myres

    • Brigham Young University

  • Shanell Reynolds

    • Brigham Young University

  • Tracianne Neilsen

    • Brigham Young University

  • Alan Wall

    • Brigham Young University

  • Kent Gee

    • Brigham Young University