Effect of wave frequency on the nonlinear interaction between Gortler vortices and three-dimensional Tollmien-Schlichting waves

Márcio T. Mendonça, Laura L. Pauley, Philip J. Morris

Research output: Contribution to journalArticlepeer-review

Abstract

The nonlinear interaction between Gortler vortices (GV) and three-dimensional Tollmien-Schlichting (TS) waves nonlinear interaction is studied with a spatial, nonparallel model based on the Parabolized Stability Equations (PSE). In this investigation the effect of TS wave frequency on the nonlinear interaction is studied. As verified in previous investigations using the same numerical model, the relative amplitudes and growth rates are the dominant parameters in GV/TS wave interaction. In this sense, the wave frequency influence is important in defining the streamwise distance traveled by the disturbances in the unstable region of the stability diagram and in defining the amplification rates that they go through.

Original languageEnglish (US)
Pages (from-to)69-82
Number of pages14
JournalRevista Brasileira de Ciencias Mecanicas/Journal of the Brazilian Society of Mechanical Sciences
Volume22
Issue number1
DOIs
StatePublished - 2000

All Science Journal Classification (ASJC) codes

  • Medicine(all)

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