Turbulent Wake behind Slender Bodies Including Self-Propelled Configurations

Abstract

The turbulent wakes behind a streamlined drag body, a jet-propelled body, and a propeller-driven body are studied experimentally in a subsonic wind tunnel at a principal nominal free-stream velocity of 206 ft/sec. Mean flow data taken downstream of the sterns of these bodies include velocity and static pressure distributions. The stream-wise variation of the maximum values of axial turbulence intensity and radial shear stress are also presented. The mean flow data for the wake behind the drag body compare favorably with previous experiments and establish a rigid reference for the wakes behind slender, self- propelled configurations. The downstream rate of decay is essentially the same for the drag and propeller-driven bodies, whereas the decay for the jet- propelled body is substantially faster.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1974
Accession Number
ADA001040

Entities

People

  • A. K. Jakubowski
  • J. A. Schetz
  • R. C. Swanson Jr.

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Data Reduction
  • Dynamic Pressure
  • Fluid Dynamics
  • Kinetic Energy
  • Measurement
  • Pressure Distribution
  • Pressure Measurement
  • Propellers
  • Reynolds Number
  • Self Propelled
  • Shear Stresses
  • Slender Bodies
  • Static Pressure
  • Turbulent Mixing
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Fluid Mechanics and Fluid Dynamics.