@inproceedings{a42a4a5b5c774ce4b8a67c4d90eae265,
title = "Investigation of {"}loud{"} modes in a high-speed jet to identify noise-producing events",
abstract = "The current investigation focuses on a fully compressible, axisymmetric jet operating at high subsonic conditions. The test bed of interest includes 10 kHz time-resolved particle image velocimetry coupled with simultaneously sampled near and far-field pressure measurements. The experimental results to be presented have been conducted in the Syracuse University anechoic chamber at the Skytop campus. This study focuses on identifying possible noise-producing events in the flow field by implementing reduced-order modeling techniques to extract {"}loud{"} modes in the flow. These concepts are coupled with wavelet-based diagnostic tracking techniques to examine the spatial and temporal nature of the {"}loud{"} modes. For this work, Mach 0.6 and Mach 0.85 will be the focus, in an effort to understand the noise-producing structures in a subsonic jet. The overall goal of this work is to effciently link near-field velocity with far-field acoustics to identify the interactions of the flow field responsible for far-field noise generation. Low-dimensional {"}loud{"} modes can then be implemented into closed-loop control algorithms in real-time for far-field noise suppression. This paper will focus on these {"}loud{"} modes, primarily linking the flow physics directly to the acoustics.",
author = "Berger, {Zachary P.} and Berry, {Matthew G.} and Shea, {Patrick R.} and Glauser, {Mark N.} and Pinqing Kan and Jacques Lewalle and Ruscher, {Christopher J.} and Gogineni, {Sivaram P.}",
note = "Publisher Copyright: {\textcopyright} 2015 by Zachary Berger.; 53rd AIAA Aerospace Sciences Meeting, 2015 ; Conference date: 05-01-2015 Through 09-01-2015",
year = "2015",
doi = "10.2514/6.2015-0739",
language = "English (US)",
isbn = "9781624103438",
series = "53rd AIAA Aerospace Sciences Meeting",
publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",
booktitle = "53rd AIAA Aerospace Sciences Meeting",
}