Analysis of a rectangular supersonic multi-stream jet by LES and experiments

Matthew G. Berry; Cory M. Stack; Mohd Y. Ali; Andrew S. Magstadt; Datta V. Gaitonde; Mark N. Glauser

Analysis of a rectangular supersonic multi-stream jet by LES and experiments

Matthew G. Berry, Cory M. Stack, Mohd Y. Ali, Andrew S. Magstadt, Datta V. Gaitonde, Mark N. Glauser

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

Abstract

This paper focuses on the analysis of a rectangular supersonic multi-stream jet with aft deck using large eddy simulation (LES) and experimental data. Proper orthogonal decomposition (POD) and Dynamic mode decomposition (DMD) are applied to timeresolved schlieren, stereo particle image velocimetry (PIV), and LES data. The spatial eigenfunctions of the two datasets reveal similar trends in the flow field, where structures with high mean squared value propagate from the nozzle lip and mixing layer. In the schlieren, acoustic waves can also be seen radiating from the nozzle lip and edge of the aft deck. By combining the spatial eigenfunctions from the schlieren experiment and the time-dependent snapshots of the LES, low-dimensional time characteristics for the flow are reconstructed. Additionally, we compare the spatial modes from the PIV and LES to determine how well the coherent structures are being captured in the simulation.

Original language	English (US)
State	Published - 2017
Event	10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017 - Chicago, United States Duration: Jul 6 2017 → Jul 9 2017

Other

Other	10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017
Country/Territory	United States
City	Chicago
Period	7/6/17 → 7/9/17

ASJC Scopus subject areas

Atmospheric Science
Aerospace Engineering

Cite this

@conference{6d06e35f98fa422bae1b8319e953ece0,

title = "Analysis of a rectangular supersonic multi-stream jet by LES and experiments",

abstract = "This paper focuses on the analysis of a rectangular supersonic multi-stream jet with aft deck using large eddy simulation (LES) and experimental data. Proper orthogonal decomposition (POD) and Dynamic mode decomposition (DMD) are applied to timeresolved schlieren, stereo particle image velocimetry (PIV), and LES data. The spatial eigenfunctions of the two datasets reveal similar trends in the flow field, where structures with high mean squared value propagate from the nozzle lip and mixing layer. In the schlieren, acoustic waves can also be seen radiating from the nozzle lip and edge of the aft deck. By combining the spatial eigenfunctions from the schlieren experiment and the time-dependent snapshots of the LES, low-dimensional time characteristics for the flow are reconstructed. Additionally, we compare the spatial modes from the PIV and LES to determine how well the coherent structures are being captured in the simulation.",

author = "Berry, {Matthew G.} and Stack, {Cory M.} and Ali, {Mohd Y.} and Magstadt, {Andrew S.} and Gaitonde, {Datta V.} and Glauser, {Mark N.}",

note = "Publisher Copyright: Copyright {\textcopyright} 2016 Zakon Group LLC.; 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017 ; Conference date: 06-07-2017 Through 09-07-2017",

year = "2017",

language = "English (US)",

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TY - CONF

T1 - Analysis of a rectangular supersonic multi-stream jet by LES and experiments

AU - Berry, Matthew G.

AU - Stack, Cory M.

AU - Ali, Mohd Y.

AU - Magstadt, Andrew S.

AU - Gaitonde, Datta V.

AU - Glauser, Mark N.

PY - 2017

Y1 - 2017

N2 - This paper focuses on the analysis of a rectangular supersonic multi-stream jet with aft deck using large eddy simulation (LES) and experimental data. Proper orthogonal decomposition (POD) and Dynamic mode decomposition (DMD) are applied to timeresolved schlieren, stereo particle image velocimetry (PIV), and LES data. The spatial eigenfunctions of the two datasets reveal similar trends in the flow field, where structures with high mean squared value propagate from the nozzle lip and mixing layer. In the schlieren, acoustic waves can also be seen radiating from the nozzle lip and edge of the aft deck. By combining the spatial eigenfunctions from the schlieren experiment and the time-dependent snapshots of the LES, low-dimensional time characteristics for the flow are reconstructed. Additionally, we compare the spatial modes from the PIV and LES to determine how well the coherent structures are being captured in the simulation.

AB - This paper focuses on the analysis of a rectangular supersonic multi-stream jet with aft deck using large eddy simulation (LES) and experimental data. Proper orthogonal decomposition (POD) and Dynamic mode decomposition (DMD) are applied to timeresolved schlieren, stereo particle image velocimetry (PIV), and LES data. The spatial eigenfunctions of the two datasets reveal similar trends in the flow field, where structures with high mean squared value propagate from the nozzle lip and mixing layer. In the schlieren, acoustic waves can also be seen radiating from the nozzle lip and edge of the aft deck. By combining the spatial eigenfunctions from the schlieren experiment and the time-dependent snapshots of the LES, low-dimensional time characteristics for the flow are reconstructed. Additionally, we compare the spatial modes from the PIV and LES to determine how well the coherent structures are being captured in the simulation.

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T2 - 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017

Y2 - 6 July 2017 through 9 July 2017

ER -

Analysis of a rectangular supersonic multi-stream jet by LES and experiments

Abstract

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ASJC Scopus subject areas

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