Large Eddies and Vortex Streets Behind Moving Jets in a Stratified Fluid

Abstract

The results of experiments with jet-like flows, induced by a horizontally moving momentum source in a density-stratified fluid are presented. The jet acts either impulsively or continuously. In the latter case both the counter- and co-flowing motions are considered. It is shown that large eddies and vortex streets, similar to those observed behind bluff bodies, are formed in the flow, where the effect of solid boundary is negligible. The conditions under which large eddies and vortex streets appear in the flow are determined. Possible applications include stratified wakes behind maneuvering self-propelled bodies.

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Document Details

Document Type
Technical Report
Publication Date
Jul 13, 2000
Accession Number
ADA389662

Entities

People

  • D. L. Boyer
  • I. A. Filippov
  • S. A. Smirnov
  • S. I. Voropayev

Organizations

  • Arizona State University

Tags

Communities of Interest

  • C4I
  • Space

DTIC Thesaurus Topics

  • Acid-Base Indicators
  • Application Software
  • Boundary Layer
  • Buoyancy
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Mechanical Phenomena
  • Mechanical Properties
  • Photographs
  • Reynolds Number
  • Self Propelled
  • Solid Bodies
  • Stratified Fluids
  • Three Dimensional
  • Time Intervals

Fields of Study

  • Physics

Readers

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