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

Marcus Zengl, Dominic Von Terzi, Hermann F Fasel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

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 languageEnglish (US)
Title of host publicationIUTAM Bookseries
Pages445-450
Number of pages6
Volume18
DOIs
StatePublished - 2010
Event7th IUTAM Symposium on Laminar-Turbulent Transition - Stockholm, Sweden
Duration: Jun 23 2009Jun 26 2009

Publication series

NameIUTAM Bookseries
Volume18
ISSN (Print)18753507

Other

Other7th IUTAM Symposium on Laminar-Turbulent Transition
CountrySweden
CityStockholm
Period6/23/096/26/09

Fingerprint

Mach number
boundary layers
Boundary layers
breakdown
skin friction
Skin friction
Direct numerical simulation
flat plates
direct numerical simulation
upstream
interactions

ASJC Scopus subject areas

  • Aerospace Engineering
  • Automotive Engineering
  • Civil and Structural Engineering
  • Mechanical Engineering
  • Acoustics and Ultrasonics

Cite this

Zengl, M., Von Terzi, D., & Fasel, H. F. (2010). Numerical investigation of subharmonic resonance triads in a Mach 3 boundary layer. In IUTAM Bookseries (Vol. 18, pp. 445-450). (IUTAM Bookseries; Vol. 18). 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.

IUTAM Bookseries. Vol. 18 2010. p. 445-450 (IUTAM Bookseries; Vol. 18).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zengl, M, Von Terzi, D & Fasel, HF 2010, Numerical investigation of subharmonic resonance triads in a Mach 3 boundary layer. in IUTAM Bookseries. vol. 18, IUTAM Bookseries, vol. 18, pp. 445-450, 7th IUTAM Symposium on Laminar-Turbulent Transition, Stockholm, Sweden, 6/23/09. https://doi.org/10.1007/978-90-481-3723-7-72
Zengl M, Von Terzi D, Fasel HF. Numerical investigation of subharmonic resonance triads in a Mach 3 boundary layer. In IUTAM Bookseries. Vol. 18. 2010. p. 445-450. (IUTAM Bookseries). https://doi.org/10.1007/978-90-481-3723-7-72
Zengl, Marcus ; Von Terzi, Dominic ; Fasel, Hermann F. / Numerical investigation of subharmonic resonance triads in a Mach 3 boundary layer. IUTAM Bookseries. Vol. 18 2010. pp. 445-450 (IUTAM Bookseries).
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