Application of synthetic phased array techniques to hot supersonic jet noise

Christopher C. Nelson, Alan B. Cain, Robert Dougherty, Kenneth Steven Brentner, Philip John Morris

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The use of an unsteady CFD simulation to provide data for a full acoustic analysis of a hot supersonic jet flow has been demonstrated in a preliminary study. The CHOPA solver was used to predict the near-field flow solution. The data from the CFD simulation was sampled to provide the input for the PSU-WOPWOP Ffowcs Williams-Hawkings solver. PSU-WOPWOP was used to predict the farfield acoustic conditions at locations that correspond to a virtual phased array of microphones. The pressure "measurements" from the virtual array were then processed using the Beamform Interactive software package using the same techniques used for physical microphone array measurements. All the stages of this process have been demonstrated to show how the process is able to predict the expected dominant noise sources in the flow from a military-style faceted nozzle. When fully realized, this technology offers the possibility of providing the insight needed to develop improved beamforming methods as well as allowing the screening of nozzle designs and experimental configurations for acoustical qualities prior to fabrication and operational testing.

Original languageEnglish (US)
Title of host publication51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
StatePublished - Aug 19 2013
Event51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013 - Grapevine, TX, United States
Duration: Jan 7 2013Jan 10 2013

Publication series

Name51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013

Other

Other51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
CountryUnited States
CityGrapevine, TX
Period1/7/131/10/13

Fingerprint

synthetic arrays
jet aircraft noise
phased arrays
Microphones
charge flow devices
microphones
supersonic jet flow
Computational fluid dynamics
Acoustics
nozzle design
Nozzle design
acoustics
beamforming
pressure measurement
Beamforming
Pressure measurement
Software packages
nozzles
jet flow
Nozzles

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering

Cite this

Nelson, C. C., Cain, A. B., Dougherty, R., Brentner, K. S., & Morris, P. J. (2013). Application of synthetic phased array techniques to hot supersonic jet noise. In 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013 (51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013).
Nelson, Christopher C. ; Cain, Alan B. ; Dougherty, Robert ; Brentner, Kenneth Steven ; Morris, Philip John. / Application of synthetic phased array techniques to hot supersonic jet noise. 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013. 2013. (51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013).
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Nelson, CC, Cain, AB, Dougherty, R, Brentner, KS & Morris, PJ 2013, Application of synthetic phased array techniques to hot supersonic jet noise. in 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013. 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013, 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013, Grapevine, TX, United States, 1/7/13.

Application of synthetic phased array techniques to hot supersonic jet noise. / Nelson, Christopher C.; Cain, Alan B.; Dougherty, Robert; Brentner, Kenneth Steven; Morris, Philip John.

51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013. 2013. (51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - The use of an unsteady CFD simulation to provide data for a full acoustic analysis of a hot supersonic jet flow has been demonstrated in a preliminary study. The CHOPA solver was used to predict the near-field flow solution. The data from the CFD simulation was sampled to provide the input for the PSU-WOPWOP Ffowcs Williams-Hawkings solver. PSU-WOPWOP was used to predict the farfield acoustic conditions at locations that correspond to a virtual phased array of microphones. The pressure "measurements" from the virtual array were then processed using the Beamform Interactive software package using the same techniques used for physical microphone array measurements. All the stages of this process have been demonstrated to show how the process is able to predict the expected dominant noise sources in the flow from a military-style faceted nozzle. When fully realized, this technology offers the possibility of providing the insight needed to develop improved beamforming methods as well as allowing the screening of nozzle designs and experimental configurations for acoustical qualities prior to fabrication and operational testing.

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Nelson CC, Cain AB, Dougherty R, Brentner KS, Morris PJ. Application of synthetic phased array techniques to hot supersonic jet noise. In 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013. 2013. (51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013).