Phased acoustic array measurements of a 5.75% hybrid wing body aircraft

Detailed acoustic measurements of the noise from the leading-edge Krueger flap of a 5.75% hybrid wing body aircraft model were acquired with a traversing phased microphone array in the Arnold Engineering Development Complex NFAC 40- by 80-foot wind tunnel. The spatial resolution of the array was sufficient to distinguish between individual support brackets over the full-scale frequency range of 100 to 2875 Hz. For conditions representative of landing and take-off configuration, the noise from the brackets dominated other sources near the leading edge. Inclusion of flight-like brackets for select conditions highlights the importance of including the correct number of leading-edge high-lift device brackets with sufficient scale and fidelity. These measurements support the development of a Krueger noise model which includes cove and bracket noise.

• Record URL:
  • https://doi.org/10.1177/1475472X17719104
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/1475472X
• Supplemental Notes:
  • © 2017 Nathan J. Burnside et al.
• Authors:
  • Burnside, Nathan J
  • Horne, William C
  • Elmer, Kevin R
  • Cheng, Rui
  • Brusniak, Leon
• Publication Date: 2017-7

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 326-357
• Serial:
  • International Journal of Aeroacoustics
  • Volume: 16
  • Issue Number: 4-5
  • Publisher: Sage Publications, Incorporated
  • ISSN: 1475-472X
  • EISSN: 20484003
  • Serial URL: https://journals.sagepub.com/home/jae

Subject/Index Terms

• TRT Terms: Acoustics; Aircraft; Measurement; Microphones; Noise; Noise sources; Wind tunnels
• Subject Areas: Aviation; Vehicles and Equipment;

Filing Info

• Accession Number: 01722635
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 15 2019 1:45PM