VISCOUS AND FORWARD SPEED EFFECTS ON UNBALANCED JETS IN GROUND PROXIMITY

Abstract

This is an interim report on a theoretical investigation of the flow of air jets in ground proximity. A previous report presented a theory which included the effects of viscosity on a two-dimensional wall jet. The theory was found to be adequate for the hovering mode. This report extends the theory to include the cases of forward velocity and small angular displacements in hover. The theory indicates that the vortices or vortex-type flow induced by the viscosity of the air jets is of some importance to the stability of the annular jet Ground Effect Machine. The investigation is continuing with experiments to confirm the assumed vortical flow pattern.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1963
Accession Number
AD0426178

Entities

People

  • C. C. Hsu

Tags

Communities of Interest

  • Biomedical
  • Weapons Technologies

DTIC Thesaurus Topics

  • Base Pressure
  • Boundary Layer
  • Cross Flow
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Government Procurement
  • Governments
  • Ground Effect
  • Ground Effect Machines
  • Jet Flow
  • Leading Edges
  • Mass Flow
  • Pressure Distribution
  • Transportation
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.