PREDICTION OF BOUNDARY LAYER PRESSURE FLUCTUATIONS

Abstract

The pressure fluctuations beneath equilibrium boundary layers at subsonic and supersonic speeds are reviewed. Empirical formulae are presented for the intensity, spectra, and cross spectra of the fluctuations. The formulae are intended for direct use in structural response calculations. A simple theoretical model to predict intensities at supersonic speeds is put forward, and the effects of nonequilibrium boundary layers are discussed in general terms. An appendix gives theoretical justification for negative exponential correlation curves at large spacings. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1968
Accession Number
AD0832715

Entities

People

  • Martin V. Lowson

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Aircrafts
  • Boundaries
  • Boundary Layer
  • Contracts
  • Equations
  • Government Procurement
  • Governments
  • Intensity
  • Layers
  • Mach Number
  • Power Spectra
  • Pressure Gradients
  • Spectra
  • Turbulent Boundary Layer
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Hypersonics - Hypersonic Flight
  • Hypersonics - Hypersonic Flow
  • Space
  • Space - Hall-Effect Thruster