TY - GEN
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.
N1 - Funding Information:
The authors would like to acknowledge AFOSR, program manager Dr. Doug Smith, for funding this research, Grant No. FA9550-15-1-0435. The authors would also like to acknowledge Spectral Energies, LLC. Phase II SBIR, with Dr. Alex Giese, Thomas Fer-rill, and AFRL for the ongoing support and interactions throughout these research endeavors. Additionally, the authors acknowledge Dr. Jacques Lewalle, Pingqing Kan, Andrew Tenney (Syracuse University), and Dr. Barry Kiel (AFRL) for many insightful discussions throughout the experiments and analysis. Finally, thanks to Dr. James Gord, Amy Lynch, and Dr. Benjamin Halls for providing valuable equipment and Thomas Coleman (Syracuse University) for helping to acquire this comprehensive dataset.
Publisher Copyright:
Copyright © 2016 Zakon Group LLC.
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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M3 - Conference contribution
AN - SCOPUS:85013195276
T3 - 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017
BT - 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017
PB - International Symposium on Turbulence and Shear Flow Phenomena, TSFP10
T2 - 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017
Y2 - 6 July 2017 through 9 July 2017
ER -