Modal Interactions in a Bickley Jet by Direct Numerical Simulation

Abstract

We consider interactions between varicose and sinuous oblique disturbances in the Bickley jet, using both nonlinear stability theory (in its nonlinear critical layer form) and direct numerical simulation using a spectral method. Nonlinear stability theory indicates that a (nonlinear) interaction between the modes should occur, and our simulations would seem to support this.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2001
Accession Number
ADP013671

Entities

People

  • Michael Haslam
  • Roland Mallier

Organizations

  • Western University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Amplitude
  • Applied Mathematics
  • Equations
  • Euler Equations
  • Fast Fourier Transforms
  • Fourier Series
  • Mathematics
  • Phase Velocity
  • Plane Waves
  • Reynolds Number
  • Simulations
  • Technical Information Centers
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional
  • Viscosity
  • Waves

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Fluid Mechanics and Fluid Dynamics.