Estimates of the Wavenumber-Frequency Spectra for the Nonhomogeneous Streamwise Transition Flow Pressure Field.

Abstract

This research implements computer models to provide unprecedented estimates of the two spectral formats for the stationary, nonhomogeneous, streamwise transitional flow pressure field. Estimates of the space-varying wavenumber-frequency spectrum that reveal components having convective as well as subconvective velocities are presented. These subconvective components are believed to be associated with the leading and trailing edge speed of the turbulent spot generation process. In addition, estimates of the full spectral two wavenumber-frequency spectrum that are concise and informationally equivalent to the space-varying wavenumber-frequency spectrum are provided.

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Document Details

Document Type
Technical Report
Publication Date
Jun 14, 1996
Accession Number
ADA310717

Entities

People

  • Ronald I. Ochsenknecht

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Computers
  • Convection
  • Data Acquisition
  • Demographic Cohorts
  • Flow Fields
  • Frequency
  • Layers
  • Measurement
  • Peak Values
  • Spectra
  • Trailing Edges
  • Transitions
  • Turbulent Flow
  • Undersea Warfare
  • Weighting Functions

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Image Processing and Computer Vision.
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Space
  • Space - Hall-Effect Thruster