Interaction of shear layer coherent structures and the stand-off shock of an under-expanded circular impinging jet

Paul  Stegeman; Julio Soria; Andrew Ooi

doi:10.1007/978-3-662-48868-3_39

Interaction of shear layer coherent structures and the stand-off shock of an under-expanded circular impinging jet

Paul Stegeman, Julio Soria, Andrew Ooi

Mechanical & Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Chapter (Book) › Research › peer-review

8 Citations (Scopus)

Abstract

This study looks specifically at the energy transformations that occur during the interaction of strong shear layer coherent structures with the stand off shock. Time resolved data has been produced from high fidelity large-eddy simulations at a nozzle pressure ratio of NPR=3.4 and impingement surface stand-off distance of z=5d . Two dominant instability modes have been analysed using the velocity fluctuation energy density in the shear layer. Stand-off shock position statistics have been found as a function of radial position. Comparison of the shear layer pressure fluctuations and shock position fluctuation through a magnitude squared coherence analysis has been performed. It has been shown that the correlation of the initial shear layer pressure fluctuations and shock position is moderate at the dominant mode Strouhal numbers.

Original language	English
Title of host publication	Fluid-Structure-Sound Interactions and Control
Subtitle of host publication	Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control
Editors	Yu Zhou, Yang Liu, A.D. Lucey, Lixi Huang
Place of Publication	Heidelberg
Publisher	Springer
Pages	241-245
Number of pages	5
Volume	Part F3
ISBN (Electronic)	9783662488683
ISBN (Print)	9783662488669
DOIs	https://doi.org/10.1007/978-3-662-48868-3_39
Publication status	Published - 2016
Event	Symposium on Fluid-Structure-Sound Interactions and Control 2015 - Perth, Australia Duration: 5 Jul 2015 → 9 Jul 2015 Conference number: 3rd

Publication series

Name	Lecture Notes in Mechanical Engineering
Publisher	Springer
ISSN (Print)	2195-4356
ISSN (Electronic)	2195-4364

Conference

Conference	Symposium on Fluid-Structure-Sound Interactions and Control 2015
Abbreviated title	FSSIC 2015
Country/Territory	Australia
City	Perth
Period	5/07/15 → 9/07/15

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10.1007/978-3-662-48868-3_39

Cite this

Stegeman, P., Soria, J., & Ooi, A. (2016). Interaction of shear layer coherent structures and the stand-off shock of an under-expanded circular impinging jet. In Y. Zhou, Y. Liu, A. D. Lucey, & L. Huang (Eds.), Fluid-Structure-Sound Interactions and Control: Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control (Vol. Part F3, pp. 241-245). (Lecture Notes in Mechanical Engineering). Springer. https://doi.org/10.1007/978-3-662-48868-3_39

Stegeman, Paul ; Soria, Julio ; Ooi, Andrew. / Interaction of shear layer coherent structures and the stand-off shock of an under-expanded circular impinging jet. Fluid-Structure-Sound Interactions and Control: Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control. editor / Yu Zhou ; Yang Liu ; A.D. Lucey ; Lixi Huang. Vol. Part F3 Heidelberg : Springer, 2016. pp. 241-245 (Lecture Notes in Mechanical Engineering).

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abstract = "This study looks specifically at the energy transformations that occur during the interaction of strong shear layer coherent structures with the stand off shock. Time resolved data has been produced from high fidelity large-eddy simulations at a nozzle pressure ratio of NPR=3.4 and impingement surface stand-off distance of z=5d . Two dominant instability modes have been analysed using the velocity fluctuation energy density in the shear layer. Stand-off shock position statistics have been found as a function of radial position. Comparison of the shear layer pressure fluctuations and shock position fluctuation through a magnitude squared coherence analysis has been performed. It has been shown that the correlation of the initial shear layer pressure fluctuations and shock position is moderate at the dominant mode Strouhal numbers.",

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Stegeman, P, Soria, J & Ooi, A 2016, Interaction of shear layer coherent structures and the stand-off shock of an under-expanded circular impinging jet. in Y Zhou, Y Liu, AD Lucey & L Huang (eds), Fluid-Structure-Sound Interactions and Control: Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control. vol. Part F3, Lecture Notes in Mechanical Engineering, Springer, Heidelberg, pp. 241-245, Symposium on Fluid-Structure-Sound Interactions and Control 2015, Perth, Western Australia, Australia, 5/07/15. https://doi.org/10.1007/978-3-662-48868-3_39

Interaction of shear layer coherent structures and the stand-off shock of an under-expanded circular impinging jet. / Stegeman, Paul ; Soria, Julio; Ooi, Andrew.
Fluid-Structure-Sound Interactions and Control: Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control. ed. / Yu Zhou; Yang Liu; A.D. Lucey; Lixi Huang. Vol. Part F3 Heidelberg: Springer, 2016. p. 241-245 (Lecture Notes in Mechanical Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Chapter (Book) › Research › peer-review

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T1 - Interaction of shear layer coherent structures and the stand-off shock of an under-expanded circular impinging jet

AU - Stegeman, Paul

AU - Soria, Julio

AU - Ooi, Andrew

N1 - Conference code: 3rd

PY - 2016

Y1 - 2016

N2 - This study looks specifically at the energy transformations that occur during the interaction of strong shear layer coherent structures with the stand off shock. Time resolved data has been produced from high fidelity large-eddy simulations at a nozzle pressure ratio of NPR=3.4 and impingement surface stand-off distance of z=5d . Two dominant instability modes have been analysed using the velocity fluctuation energy density in the shear layer. Stand-off shock position statistics have been found as a function of radial position. Comparison of the shear layer pressure fluctuations and shock position fluctuation through a magnitude squared coherence analysis has been performed. It has been shown that the correlation of the initial shear layer pressure fluctuations and shock position is moderate at the dominant mode Strouhal numbers.

AB - This study looks specifically at the energy transformations that occur during the interaction of strong shear layer coherent structures with the stand off shock. Time resolved data has been produced from high fidelity large-eddy simulations at a nozzle pressure ratio of NPR=3.4 and impingement surface stand-off distance of z=5d . Two dominant instability modes have been analysed using the velocity fluctuation energy density in the shear layer. Stand-off shock position statistics have been found as a function of radial position. Comparison of the shear layer pressure fluctuations and shock position fluctuation through a magnitude squared coherence analysis has been performed. It has been shown that the correlation of the initial shear layer pressure fluctuations and shock position is moderate at the dominant mode Strouhal numbers.

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DO - 10.1007/978-3-662-48868-3_39

M3 - Chapter (Book)

AN - SCOPUS:85019656808

SN - 9783662488669

VL - Part F3

T3 - Lecture Notes in Mechanical Engineering

SP - 241

EP - 245

BT - Fluid-Structure-Sound Interactions and Control

A2 - Zhou, Yu

A2 - Liu, Yang

A2 - Lucey, A.D.

A2 - Huang, Lixi

PB - Springer

CY - Heidelberg

T2 - Symposium on Fluid-Structure-Sound Interactions and Control 2015

Y2 - 5 July 2015 through 9 July 2015

ER -

Stegeman P, Soria J, Ooi A. Interaction of shear layer coherent structures and the stand-off shock of an under-expanded circular impinging jet. In Zhou Y, Liu Y, Lucey AD, Huang L, editors, Fluid-Structure-Sound Interactions and Control: Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control. Vol. Part F3. Heidelberg: Springer. 2016. p. 241-245. (Lecture Notes in Mechanical Engineering). doi: 10.1007/978-3-662-48868-3_39

Interaction of shear layer coherent structures and the stand-off shock of an under-expanded circular impinging jet

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