Effect of wave frequency on Görtler vortices/tollmien-schlichting wave interaction

Márcio T. Mendonça, Laura Pauley, Philip John Morris

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

In this paper the effect of wave frequency on the nonlinear interaction between Görtier vortices and two-dimensional Tollmien-Schlichting waves is studied with a spatial, nonparallel model based on the Parabolized Stability Equations. As verified in previous investigations using the same numerical model, the relative amplitudes of the Görtier vortices and Tollmien-Schlichting waves is one of the dominant parameters, thus, the wave frequency influence is important in defining the streamwise distance traveled by the disturbances in the unstable region of the stability diagram. When the Tollmien-Schlichting wave reaches amplitudes of the same order of magnitude as the vortices, significant nonlinear interaction takes place resulting in earlier breakdown to turbulence.

Original languageEnglish (US)
StatePublished - Jan 1 1999
Event37th Aerospace Sciences Meeting and Exhibit, 1999 - Reno, United States
Duration: Jan 11 1999Jan 14 1999

Other

Other37th Aerospace Sciences Meeting and Exhibit, 1999
CountryUnited States
CityReno
Period1/11/991/14/99

Fingerprint

Tollmien-Schlichting waves
wave interaction
vortex
Vortex flow
vortices
disturbances
breakdown
turbulence
diagrams
interactions
Numerical models
Turbulence
diagram
effect
disturbance

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering

Cite this

Mendonça, M. T., Pauley, L., & Morris, P. J. (1999). Effect of wave frequency on Görtler vortices/tollmien-schlichting wave interaction. Paper presented at 37th Aerospace Sciences Meeting and Exhibit, 1999, Reno, United States.
Mendonça, Márcio T. ; Pauley, Laura ; Morris, Philip John. / Effect of wave frequency on Görtler vortices/tollmien-schlichting wave interaction. Paper presented at 37th Aerospace Sciences Meeting and Exhibit, 1999, Reno, United States.
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Mendonça, MT, Pauley, L & Morris, PJ 1999, 'Effect of wave frequency on Görtler vortices/tollmien-schlichting wave interaction' Paper presented at 37th Aerospace Sciences Meeting and Exhibit, 1999, Reno, United States, 1/11/99 - 1/14/99, .

Effect of wave frequency on Görtler vortices/tollmien-schlichting wave interaction. / Mendonça, Márcio T.; Pauley, Laura; Morris, Philip John.

1999. Paper presented at 37th Aerospace Sciences Meeting and Exhibit, 1999, Reno, United States.

Research output: Contribution to conferencePaper

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T1 - Effect of wave frequency on Görtler vortices/tollmien-schlichting wave interaction

AU - Mendonça, Márcio T.

AU - Pauley, Laura

AU - Morris, Philip John

PY - 1999/1/1

Y1 - 1999/1/1

N2 - In this paper the effect of wave frequency on the nonlinear interaction between Görtier vortices and two-dimensional Tollmien-Schlichting waves is studied with a spatial, nonparallel model based on the Parabolized Stability Equations. As verified in previous investigations using the same numerical model, the relative amplitudes of the Görtier vortices and Tollmien-Schlichting waves is one of the dominant parameters, thus, the wave frequency influence is important in defining the streamwise distance traveled by the disturbances in the unstable region of the stability diagram. When the Tollmien-Schlichting wave reaches amplitudes of the same order of magnitude as the vortices, significant nonlinear interaction takes place resulting in earlier breakdown to turbulence.

AB - In this paper the effect of wave frequency on the nonlinear interaction between Görtier vortices and two-dimensional Tollmien-Schlichting waves is studied with a spatial, nonparallel model based on the Parabolized Stability Equations. As verified in previous investigations using the same numerical model, the relative amplitudes of the Görtier vortices and Tollmien-Schlichting waves is one of the dominant parameters, thus, the wave frequency influence is important in defining the streamwise distance traveled by the disturbances in the unstable region of the stability diagram. When the Tollmien-Schlichting wave reaches amplitudes of the same order of magnitude as the vortices, significant nonlinear interaction takes place resulting in earlier breakdown to turbulence.

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Mendonça MT, Pauley L, Morris PJ. Effect of wave frequency on Görtler vortices/tollmien-schlichting wave interaction. 1999. Paper presented at 37th Aerospace Sciences Meeting and Exhibit, 1999, Reno, United States.