@inproceedings{788f71f5a95a4668b8053b6ebf27ab02,
title = "The role of large-scale structures on crackle noise",
abstract = "Large-scale direct numerical simulations of temporally developing turbulent mixing layers, as models for the near-nozzle shear layers of high-speeds jets, are used to examine the generation of the intense 'crackle' sound they produce. The simulations are confirmed to reproduce the well-known shock-wave-like pressure fields and peculiar pressure skewness observed for such flows. It is also confirmed that these observations are insensitive to Reynolds number. The role of the specific large-scale structure of the turbulence is investigated by a novel modification of it, motivated by the known instabilities of high-versus low-speed free shear flows. It is concluded that the structure of the turbulence has little affect on Sk.",
author = "Buchta, {David A.} and Freund, {Jonathan B.}",
note = "Publisher Copyright: {\textcopyright} American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.; 22nd AIAA/CEAS Aeroacoustics Conference, 2016 ; Conference date: 30-05-2016 Through 01-06-2016",
year = "2016",
doi = "10.2514/6.2016-3027",
language = "English (US)",
isbn = "9781624103865",
series = "22nd AIAA/CEAS Aeroacoustics Conference, 2016",
publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",
booktitle = "22nd AIAA/CEAS Aeroacoustics Conference",
}