Correlation analysis of military aircraft jet noise

2013 ◽  
Vol 134 (5) ◽  
pp. 4094-4094
Author(s):  
Zachary Anderson ◽  
Blaine M. Harker ◽  
Kent L. Gee ◽  
Tracianne B. Neilsen ◽  
Michael M. James
Keyword(s):  
Correlation Analysis ◽  
Jet Noise ◽  
Military Aircraft

Spatiotemporal-Correlation Analysis of Jet Noise from a High-Performance Military Aircraft

AIAA Journal ◽  
2016 ◽  
Vol 54 (5) ◽  
pp. 1554-1566 ◽  
Author(s):  
Blaine M. Harker ◽  
Tracianne B. Neilsen ◽  
Kent L. Gee ◽  
Alan T. Wall ◽  
Michael M. James
Keyword(s):  
Correlation Analysis ◽  
High Performance ◽  
Jet Noise ◽  
Military Aircraft ◽  
Spatiotemporal Correlation

Near to far field relationship of crackle-related events in military aircraft jet noise

2020 ◽  
Vol 148 (4) ◽  
pp. 2617-2617
Author(s):  
Aaron B. Vaughn ◽  
Kent L. Gee ◽  
Kevin M. Leete ◽  
J. M. Downing
Keyword(s):  
Jet Noise ◽  
Far Field ◽  
Military Aircraft ◽  
Relationship Of ◽  
Field Relationship

Source Localization of Crackle-Related Events in Military Aircraft Jet Noise

AIAA Journal ◽  
2021 ◽  
pp. 1-11
Author(s):  
Aaron B. Vaughn ◽  
Kent L. Gee ◽  
S. Hales Swift ◽  
Kevin M. Leete ◽  
Alan T. Wall ◽  
...  
Keyword(s):  
Source Localization ◽  
Jet Noise ◽  
Military Aircraft

Acoustics measurements of military-style supersonic beveled nozzle jets with interior corrugations

2016 ◽  
Vol 16 (1-2) ◽  
pp. 21-43 ◽  
Author(s):  
Russell W Powers ◽  
Dennis K McLaughlin
Keyword(s):  
Noise Reduction ◽  
Acoustic Field ◽  
High Speed ◽  
Supersonic Jet ◽  
Jet Noise ◽  
Operating Conditions ◽  
Military Aircraft ◽  
Azimuthal Dependence ◽  
Penn State ◽  
Mixing Noise

Increasingly powerful and noisy military aircraft have generated the need for research leading to the development of supersonic jet noise reduction devices. The hot, high speed supersonic jets exhausting from military aircraft during takeoff present a most challenging problem. The present study extends prior research on two methods of noise reduction. The first is the internal nozzle corrugations pioneered by Seiner et al. and the second is the beveled exit plane explored most recently by Viswanathan. A novel research idea of creating fluidic corrugations similar to the nozzle corrugations has been initiated by Penn State. To further the understanding and analysis of the fluidic corrugations, the present study focuses on the flow field and acoustic field of nozzles with two, three, and six conventional, hardwalled corrugations. The effect of the combination of the internal corrugations with a beveled nozzle is explored. The results show that significant noise reductions of over 3 dB of the mixing noise and the broadband shock-associated noise can be achieved. The combination of the beveled nozzle and the internal nozzle corrugations showed that there is less azimuthal dependence of the acoustic field than for the purely beveled nozzle. The combination nozzle was shown to reduce the noise over a wider range of polar angles and operating conditions than either the purely beveled nozzle or the purely corrugated nozzle.

scholarly journals A vector intensity-based equivalent wavepacket model for high-performance military aircraft jet noise

2015 ◽  
Author(s):  
Eric B. Whiting ◽  
Kent L. Gee ◽  
Trevor A. Stout ◽  
Tracianne B. Neilsen ◽  
Alan T. Wall ◽  
...  
Keyword(s):  
High Performance ◽  
Jet Noise ◽  
Military Aircraft

Wavepacket source modeling of high-performance military aircraft jet noise from cross-beamforming analysis

2016 ◽  
Vol 140 (4) ◽  
pp. 3097-3098
Author(s):  
Blaine M. Harker ◽  
Kent L. Gee ◽  
Tracianne B. Neilsen ◽  
Michael M. James
Keyword(s):  
High Performance ◽  
Jet Noise ◽  
Military Aircraft ◽  
Source Modeling

Spatiotemporal correlation of high-performance military aircraft jet noise

2015 ◽  
Vol 138 (3) ◽  
pp. 1892-1892
Author(s):  
Blaine M. Harker ◽  
Tracianne B. Neilsen ◽  
Kent L. Gee ◽  
Alan T. Wall ◽  
Michael M. James
Keyword(s):  
High Performance ◽  
Jet Noise ◽  
Military Aircraft ◽  
Spatiotemporal Correlation
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