Compressible Boundary Layer Receptivity and Instability

Abstract

A high quality flow has been established in a low turbulence variable geometry (LTVG) 8' x 8' supersonic wind-tunnel at Princeton. In particular, the facility is being operated at very low stagnation pressures (- = 4 psia) giving a large region of laminar flow on a flat plate with laminar boundary layers up to approximately 3mm thick. Mean profiles, amplitude distributions, two wire correlations and spectra have been measured in detail through a Mach 3 boundary layer along the centerline of the flat plate. The initial results are for "naturally" occurring instability and transition and they are being followed by measurements of the forced response from a point source (spark) .1.

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Document Details

Document Type
Technical Report
Publication Date
Aug 18, 1998
Accession Number
ADA383320

Entities

People

  • Garry L. Brown
  • Paolo Graziosi

Organizations

  • Princeton University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Amplitude
  • Boundaries
  • Boundary Layer
  • Flow
  • Free Stream
  • Frequency
  • Instability
  • Laminar Boundary Layer
  • Laminar Flow
  • Layers
  • Leading Edges
  • Measurement
  • Reynolds Number
  • Spectra
  • Stagnation Pressure
  • Transitions
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Hypersonics - Hypersonic Flow