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: Chapter in Book/Report/Conference proceedingConference contribution

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 languageEnglish (US)
Title of host publication9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015
PublisherTSFP-9
ISBN (Electronic)9780000000002
StatePublished - Jan 1 2015
Event9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015 - Melbourne, Australia
Duration: Jun 30 2015Jul 3 2015

Publication series

Name9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015
Volume1

Other

Other9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015
CountryAustralia
CityMelbourne
Period6/30/157/3/15

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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    Magstadt, A. S., Berry, M. G., Berger, Z. P., Shea, P. R., Glauser, M. N., Ruscher, C. J., & Gogineni, S. (2015). An investigation of sonic & supersonic axisymmetric jets: Correlations between flow physics and far-field noise. In 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015 (9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015; Vol. 1). TSFP-9.