Evolution from 'tabs' to 'chevron technology'-a review

K Zaman, JE Bridges, DL Huff - International Journal of …, 2011 - journals.sagepub.com
'Chevrons', a sawtooth pattern on the trailing edge of exhaust nozzles, are being
implemented on modern jet engines. The technology reduces jet noise for 'separate …

Wavepacket modeling of the jet noise source

D Papamoschou - International Journal of Aeroacoustics, 2018 - journals.sagepub.com
This study is motivated by the need for physical models for the jet noise source to be used in
practical noise prediction schemes for propulsion–airframe integration concepts. The basis …

Supersonic jet noise from round and chevron nozzles: experimental studies

R Schlinker, J Simonich, D Shannon, R Reba… - 15th AIAA/CEAS …, 2009 - arc.aiaa.org
High speed exhaust noise reduction continues to be a research challenge for supersonic
cruise business jets as well as for current and future tactical military aircraft. Significant noise …

Two-point wavepacket modelling of jet noise

IA Maia, P Jordan, AVG Cavalieri… - Proceedings of the …, 2019 - royalsocietypublishing.org
This paper is focused on the study of a kinematic wavepacket model for jet noise based on
two-point statistics. The model contains physical parameters that define its structure in terms …

Space-time correlation measurements in nearfields of jets

K Viswanathan, JR Underbrink, L Brusniak - AIAA journal, 2011 - arc.aiaa.org
Space–time correlation characteristics of jets operated over a wide range of jet velocities are
investigated in this study, in order to gain insights into the physical mechanisms that lead to …

Beamforming with modified steering vectors for jet noise source location

RP Dougherty - International Journal of Aeroacoustics, 2023 - journals.sagepub.com
Prof. Krish Ahuja has a longstanding interest in jet noise source location. His work in this
area is grounded in the idea that if the assumed source location is correct, then the sound …

Beamforming-based wavepacket model for noise environment predictions of tactical aircraft

BM Harker, KL Gee, TB Neilsen, AT Wall… - 23rd AIAA/CEAS …, 2017 - arc.aiaa.org
I. Introduction fforts to better understand and model the radiation of jet noise using
wavepacket-like distributions have seen increased interest over the past decade. 1-5 …

Partial-field decomposition analysis of full-scale supersonic jet noise using optimized-location virtual references

AT Wall, KL Gee, KM Leete, TB Neilsen… - The Journal of the …, 2018 - pubs.aip.org
Supersonic jet noise reduction efforts benefit from targeted source feature extraction and
high-resolution acoustic imaging. Another useful tool for feature extraction is partial field …

Flow and acoustic characteristics of non-axisymmetric jets at subsonic conditions

P Upadhyay, G Valentich, R Kumar, F Alvi - Experiments in Fluids, 2017 - Springer
Flow and acoustic behavior of two asymmetric, rectangular (AR= 4) and elliptic (AR= 2.5),
jets are studied and compared to an equivalent area round jet. The jets are operated at a …

Characteristics of jet noise: A synthesis

K Viswanathan - International Journal of Aeroacoustics, 2024 - journals.sagepub.com
It is a distinct privilege to produce this article to honor Professor Tam, the foremost authority
on jet aeroacoustics. The fundamental characteristics of jet noise have been studied for 70 …