An investigation of sonic & supersonic axisymmetric jets: Correlations between flow physics and far-field noise

Andrew S. Magstadt; Matthew G. Berry; Zachary P. Berger; Patrick R. Shea; Mark N. Glauser; Christopher J. Ruscher; Sivaram Gogineni

An investigation of sonic & supersonic axisymmetric jets: Correlations between flow physics and far-field noise

Andrew S. Magstadt, Matthew G. Berry, Zachary P. Berger, Patrick R. Shea, Mark N. Glauser, Christopher J. Ruscher, Sivaram Gogineni

Research output: Contribution to conference › Paper › peer-review

5 Scopus citations

Abstract

An axisymmetric convergent jet is studied at ideal and underexpanded conditions using velocity and acoustic data. Time-resolved and large-window PIV capture near-field velocities and are simultaneously sampled with far-field microphones. POD is used to extract modes representative of physical processes in the flow. Specifically, screechcontaining and turbulent mixing modes are isolated in the supersonic case. The decoupled velocity fields are then correlated with acoustic data to identify modes related to specific noise spectra. Finally, selective flow reconstruction is carried out to reduce flow features associated with an imperfectly expanded jet.

Original language	English (US)
State	Published - 2015
Event	9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015 - Melbourne, Australia Duration: Jun 30 2015 → Jul 3 2015

Other

Other	9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015
Country/Territory	Australia
City	Melbourne
Period	6/30/15 → 7/3/15

All Science Journal Classification (ASJC) codes

Fluid Flow and Transfer Processes

Cite this

@conference{33af05ce01a44400ace907d5374485ae,

title = "An investigation of sonic \& supersonic axisymmetric jets: Correlations between flow physics and far-field noise",

abstract = "An axisymmetric convergent jet is studied at ideal and underexpanded conditions using velocity and acoustic data. Time-resolved and large-window PIV capture near-field velocities and are simultaneously sampled with far-field microphones. POD is used to extract modes representative of physical processes in the flow. Specifically, screechcontaining and turbulent mixing modes are isolated in the supersonic case. The decoupled velocity fields are then correlated with acoustic data to identify modes related to specific noise spectra. Finally, selective flow reconstruction is carried out to reduce flow features associated with an imperfectly expanded jet.",

author = "Magstadt, \{Andrew S.\} and Berry, \{Matthew G.\} and Berger, \{Zachary P.\} and Shea, \{Patrick R.\} and Glauser, \{Mark N.\} and Ruscher, \{Christopher J.\} and Sivaram Gogineni",

year = "2015",

language = "English (US)",

note = "9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015 ; Conference date: 30-06-2015 Through 03-07-2015",

}

An investigation of sonic & supersonic axisymmetric jets: Correlations between flow physics and far-field noise. / Magstadt, Andrew S.; Berry, Matthew G.; Berger, Zachary P. et al.
2015. Paper presented at 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015, Melbourne, Australia.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - An investigation of sonic & supersonic axisymmetric jets

T2 - 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015

AU - Magstadt, Andrew S.

AU - Berry, Matthew G.

AU - Berger, Zachary P.

AU - Shea, Patrick R.

AU - Glauser, Mark N.

AU - Ruscher, Christopher J.

AU - Gogineni, Sivaram

PY - 2015

Y1 - 2015

N2 - An axisymmetric convergent jet is studied at ideal and underexpanded conditions using velocity and acoustic data. Time-resolved and large-window PIV capture near-field velocities and are simultaneously sampled with far-field microphones. POD is used to extract modes representative of physical processes in the flow. Specifically, screechcontaining and turbulent mixing modes are isolated in the supersonic case. The decoupled velocity fields are then correlated with acoustic data to identify modes related to specific noise spectra. Finally, selective flow reconstruction is carried out to reduce flow features associated with an imperfectly expanded jet.

AB - An axisymmetric convergent jet is studied at ideal and underexpanded conditions using velocity and acoustic data. Time-resolved and large-window PIV capture near-field velocities and are simultaneously sampled with far-field microphones. POD is used to extract modes representative of physical processes in the flow. Specifically, screechcontaining and turbulent mixing modes are isolated in the supersonic case. The decoupled velocity fields are then correlated with acoustic data to identify modes related to specific noise spectra. Finally, selective flow reconstruction is carried out to reduce flow features associated with an imperfectly expanded jet.

UR - https://www.scopus.com/pages/publications/85017258681

UR - https://www.scopus.com/inward/citedby.url?scp=85017258681&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85017258681

Y2 - 30 June 2015 through 3 July 2015

ER -

An investigation of sonic & supersonic axisymmetric jets: Correlations between flow physics and far-field noise

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All Science Journal Classification (ASJC) codes

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