An Investigation of the Mixing of Linear and Swirling Flows

Abstract

A research program was conducted to study in detail the importance of various aerodynamic and geometric parameters on the dissipation of a concentrated trailed vortex in which the dissipation is greatly enhanced by the continuous injection of a mass of air into its core. The basic results of the research program demonstrated that the efficiency of vortex dissipation would be maximized by designing the injection system so that the vortex was injected at its center and parallel to the axis of the trailed vortex core with a linearly- directed mass of air at sonic speeds. The efficiency of the optimum system was shown to be almost an order of magnitude better than had been demonstrated previously.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1972
Accession Number
AD0742854

Entities

People

  • John C. Balcerak
  • Richard P. White Jr.

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Aerodynamic Configurations
  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Boundary Layer
  • Computational Fluid Dynamics
  • Eddies (Fluid Mechanics)
  • Fixed Wing Aircraft
  • Flow Visualization
  • Fluid Dynamics
  • Hydrodynamics
  • Pressure Distribution
  • Split Flaps
  • Three Dimensional
  • Vortex Generators
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Systems Analysis and Design