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:
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
načítá se...