EXPERIMENTAL STUDY OF TURBULENT WAKES IN FREE-FLIGHT RANGES

Abstract

Experiments undertaken to investigate both the mean and fluctuating properties of turbulent wakes are described. The diagnostic techniques used to make local measurements in the wake utilize an electron beam fluorescence probe, sequential spark velocity apparatus, cooled-film anemometers, and electrostatic probe arrays. These provide measures of mass density, velocity, temperature and charge density fluctuations, as well as the means for inferring some properties of the wake turbulence. In each case some typical results are used to illustrate the capability of the techniques. Some comparisons are made between the results obtained by different experiments.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1968
Accession Number
AD0682616

Entities

People

  • C. Lahaye
  • D. Heckman
  • L. Tardif

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Cameras
  • Computing Devices
  • Convection
  • Detectors
  • Digital Computers
  • Electron Beams
  • Electron Density
  • Electrostatic Probes
  • Flow Visualization
  • Free Flight
  • Gas Guns
  • Geometry
  • Gun Launchers
  • Guns
  • Heat Transfer
  • Measurement
  • Photographs

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.
  • Plasma Physics.

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference
  • Directed Energy
  • Microelectronics