Numerical investigation of subharmonic resonance triads in a Mach 3 boundary layer

Marcus Zengl; Dominic Von Terzi; Hermann F Fasel

doi:10.1007/978-90-481-3723-7_72

Numerical investigation of subharmonic resonance triads in a Mach 3 boundary layer

Marcus Zengl^*, Dominic Von Terzi, Hermann F Fasel

^*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

Abstract

The possibility of a subharmonic-resonance triad in the transition process for a flat-plate boundary layer at Mach three was demonstrated using Direct Numerical Simulations (DNS). The parameters controlling such a resonance triad were investigated in detail. Finally, the interaction of this triad with the so-called 'oblique breakdown' scenario was studied. To this end, the mechanisms were invoked separately and in combination. By itself the oblique breakdown leads to a faster growth of instability waves than the subharmonic resonance. However, in a combination with a subharmonic-resonance triad, the dominant modes of the oblique breakdown experience a slower growth, whereas those of the subharmonic resonance are more amplified. Overall, the interaction promotes transition and the rise in skin friction and the drop in shape factor are moved upstream when compared to the oblique breakdown.

Original language	English
Title of host publication	7th IUTAM Symposium on Laminar-Turbulent Transition - Proceedings of the 7th IUTAM Symposium on Laminar-Turbulent Transition
Publisher	Springer
Pages	445-450
Number of pages	6
ISBN (Print)	9789048137220
DOIs	https://doi.org/10.1007/978-90-481-3723-7_72
Publication status	Published - 2010
Externally published	Yes
Event	7th IUTAM Symposium on Laminar-Turbulent Transition - Stockholm, Sweden Duration: 23 Jun 2009 → 26 Jun 2009

Publication series

Name	IUTAM Bookseries
Volume	18
ISSN (Print)	1875-3507

Conference

Conference	7th IUTAM Symposium on Laminar-Turbulent Transition
Country/Territory	Sweden
City	Stockholm
Period	23/06/09 → 26/06/09

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10.1007/978-90-481-3723-7_72

Cite this

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title = "Numerical investigation of subharmonic resonance triads in a Mach 3 boundary layer",

abstract = "The possibility of a subharmonic-resonance triad in the transition process for a flat-plate boundary layer at Mach three was demonstrated using Direct Numerical Simulations (DNS). The parameters controlling such a resonance triad were investigated in detail. Finally, the interaction of this triad with the so-called 'oblique breakdown' scenario was studied. To this end, the mechanisms were invoked separately and in combination. By itself the oblique breakdown leads to a faster growth of instability waves than the subharmonic resonance. However, in a combination with a subharmonic-resonance triad, the dominant modes of the oblique breakdown experience a slower growth, whereas those of the subharmonic resonance are more amplified. Overall, the interaction promotes transition and the rise in skin friction and the drop in shape factor are moved upstream when compared to the oblique breakdown.",

author = "Marcus Zengl and {Von Terzi}, Dominic and Fasel, {Hermann F}",

year = "2010",

doi = "10.1007/978-90-481-3723-7_72",

language = "English",

isbn = "9789048137220",

series = "IUTAM Bookseries",

publisher = "Springer",

pages = "445--450",

booktitle = "7th IUTAM Symposium on Laminar-Turbulent Transition - Proceedings of the 7th IUTAM Symposium on Laminar-Turbulent Transition",

note = "7th IUTAM Symposium on Laminar-Turbulent Transition ; Conference date: 23-06-2009 Through 26-06-2009",

}

Zengl, M, Von Terzi, D & Fasel, HF 2010, Numerical investigation of subharmonic resonance triads in a Mach 3 boundary layer. in 7th IUTAM Symposium on Laminar-Turbulent Transition - Proceedings of the 7th IUTAM Symposium on Laminar-Turbulent Transition. IUTAM Bookseries, vol. 18, Springer, pp. 445-450, 7th IUTAM Symposium on Laminar-Turbulent Transition, Stockholm, Sweden, 23/06/09. https://doi.org/10.1007/978-90-481-3723-7_72

Numerical investigation of subharmonic resonance triads in a Mach 3 boundary layer. / Zengl, Marcus; Von Terzi, Dominic; Fasel, Hermann F.
7th IUTAM Symposium on Laminar-Turbulent Transition - Proceedings of the 7th IUTAM Symposium on Laminar-Turbulent Transition. Springer, 2010. p. 445-450 (IUTAM Bookseries; Vol. 18).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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T1 - Numerical investigation of subharmonic resonance triads in a Mach 3 boundary layer

AU - Zengl, Marcus

AU - Von Terzi, Dominic

AU - Fasel, Hermann F

PY - 2010

Y1 - 2010

N2 - The possibility of a subharmonic-resonance triad in the transition process for a flat-plate boundary layer at Mach three was demonstrated using Direct Numerical Simulations (DNS). The parameters controlling such a resonance triad were investigated in detail. Finally, the interaction of this triad with the so-called 'oblique breakdown' scenario was studied. To this end, the mechanisms were invoked separately and in combination. By itself the oblique breakdown leads to a faster growth of instability waves than the subharmonic resonance. However, in a combination with a subharmonic-resonance triad, the dominant modes of the oblique breakdown experience a slower growth, whereas those of the subharmonic resonance are more amplified. Overall, the interaction promotes transition and the rise in skin friction and the drop in shape factor are moved upstream when compared to the oblique breakdown.

AB - The possibility of a subharmonic-resonance triad in the transition process for a flat-plate boundary layer at Mach three was demonstrated using Direct Numerical Simulations (DNS). The parameters controlling such a resonance triad were investigated in detail. Finally, the interaction of this triad with the so-called 'oblique breakdown' scenario was studied. To this end, the mechanisms were invoked separately and in combination. By itself the oblique breakdown leads to a faster growth of instability waves than the subharmonic resonance. However, in a combination with a subharmonic-resonance triad, the dominant modes of the oblique breakdown experience a slower growth, whereas those of the subharmonic resonance are more amplified. Overall, the interaction promotes transition and the rise in skin friction and the drop in shape factor are moved upstream when compared to the oblique breakdown.

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BT - 7th IUTAM Symposium on Laminar-Turbulent Transition - Proceedings of the 7th IUTAM Symposium on Laminar-Turbulent Transition

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ER -

Numerical investigation of subharmonic resonance triads in a Mach 3 boundary layer

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