Abstract
Since the 1950s the jet aeroacoustics community has been involved in predicting and measuring the noise distribution in jets. In this work, cylindrical and planar Fourier near-field acoustical holography are used to investigate radiation from a full-scale, installed jet engine. Practical problems involving measurement aperture and the highly directional nature of the source are addressed. Insights from numerical simulations reveal usable reconstruction regions. A comparison of cylindrical and planar NAH for the respective measurement apertures shows cylindrical NAH outperforms planar NAH on reconstructions both towards and away from the source.
Degree
MS
College and Department
Physical and Mathematical Sciences; Physics and Astronomy
Rights
http://lib.byu.edu/about/copyright/
BYU ScholarsArchive Citation
Krueger, David William, "Array-Based Characterization of Military Jet Aircraft Noise" (2012). Theses and Dissertations. 3676.
https://scholarsarchive.byu.edu/etd/3676
Date Submitted
2012-07-20
Document Type
Thesis
Handle
http://hdl.lib.byu.edu/1877/etd5545
Keywords
noise characterization, jet noise, near-field acoustical holography, holography, NAH, source distribution, source characterization, cylindrical NAH, planar NAH, regularization, modified Tikhonov filter, full-scale jet, noise measurements
Language
English