@inproceedings{fb6e13b02e5044bab1effaedf355e636,
title = "A spatio-temporal decomposition of the acoustic source in a mach 0.85 jet",
abstract = "Multi-point measurements of the near-field pressure around the periphery of a cold Mach 0.85 round jet were performed simultaneously with far-field acoustic pressure measurements to examine the spatial and temporal character of the acoustic source in the jet. A Fourier decomposition of the near-field pressure indicates that the majority of the energy is relatively evenly split between azimuthal modes 0 and 1. Only azimuthal mode 0, however, made a significant contribution to the near-field/far-field pressure cross-spectrum indicating that the acoustic source in the jet is axisymmetric. The largest contribution of azimuthal mode 0 was for low wavenumbers commonly associated with hydrodynamic pressure fluctuations, indicating that large, low frequency hydrodynamic fluctuations are hiding the dominant acoustic source in the jet.",
author = "Hall, {Joseph W.} and Pinier, {Jeremy T.} and Hall, {Andr{\'e} M.} and Glauser, {Mark N.}",
year = "2007",
doi = "10.2514/6.2007-442",
language = "English (US)",
isbn = "1563478900",
series = "Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting",
publisher = "American Institute of Aeronautics and Astronautics Inc.",
pages = "5301--5313",
booktitle = "Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting",
note = "45th AIAA Aerospace Sciences Meeting 2007 ; Conference date: 08-01-2007 Through 11-01-2007",
}