Problems in Forced Unsteady Fluid Mechanics.

Abstract

Forced unsteady fluid flows are examined from the point of view of positive implications of the time dependency. Particular problems examined in a forced unsteady mode are jets, wind tunnels, wings, ramps and diffusers, dump combustors and vortex structure. Two methods of forcing the flow are studied in detail, fluidic feedback and a cam-shaped rotor. The fluidic method produces an unsteady jet while the rotor acts as a time dependent vortex generator. Potential performance improvements with unsteady flow are evident in all of the flows examined. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1981
Accession Number
ADA110291

Entities

People

  • David Bougine
  • Hermann Viets
  • Michael Piatt
  • Mont Ball
  • Richard J. Bethke

Organizations

  • Wright State University

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Air Force
  • Boundary Layer
  • Computational Fluid Dynamics
  • Filters
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Geometry
  • Hydrodynamics
  • Measurement
  • Pressure Distribution
  • Pressure Measurement
  • Steady Flow
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Fluid Mechanics and Fluid Dynamics.