Environment and Receptivity,

Abstract

In an environment where initial disturbance levels are small, the transition Reynolds number of a boundary layer is very much dependent upon the nature and spectrum of the disturbance environment, the signatures in the boundary layer of these disturbances and their excitation of the normal modes 'receptivity', and finally the linear and nonlinear amplification of the growing modes. This lecture reviews the progress in understanding receptivity to free stream vorticity and acoustic disturbances. It also outlines the techniques of the initial value problem, which promises to be a significant additional tool for providing guidance toward the resolution of receptivity issues. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1984
Accession Number
ADP004047

Entities

People

  • E. Reshotko

Organizations

  • Case Western Reserve University

Tags

DTIC Thesaurus Topics

  • Amplification
  • Boundaries
  • Boundary Layer
  • Environment
  • Excitation
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Free Stream
  • Guidance
  • Laminar Flow
  • Layers
  • Reynolds Number
  • Transitions

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Mechanics and Fluid Dynamics.
  • Systems Analysis and Design