Phased Acoustic Array Measurements of a 5.75% Hybrid Wing body Aircraft (Invited)
| Autor: | Leon Brusniak, Rui Cheng, Nathan J. Burnside, Kevin R. Elmer, William C. Horne |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
020301 aerospace & aeronautics
Leading edge Microphone array Wing business.industry Computer science Krueger flap 02 engineering and technology 01 natural sciences 010305 fluids & plasmas law.invention Noise 0203 mechanical engineering law Range (aeronautics) 0103 physical sciences Aerospace engineering business Image resolution Wind tunnel |
| Zdroj: | 54th AIAA Aerospace Sciences Meeting. |
| DOI: | 10.2514/6.2016-0012 |
| Popis: | Detailed acoustic measurements of the noise from the leading-edge Krueger flap of a 5.75% Hybrid Wing Body (HWB) aircraft model were recently acquired with a traversing phased microphone array in the AEDC NFAC 40by 80-Foot Wind Tunnel at NASA Ames Research Center. 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 highlift device brackets with sufficient scale and fidelity. These measurements will support the development of new predictive models. |
| Databáze: | OpenAIRE |
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