INVESTIGATION OF THE RECIRCULATION REGION OF A FLOW FIELD CAUSED BY A JET IN GROUND EFFECT WITH CROSSFLOW

Abstract

A wind tunnel investigation was conducted in the Low Speed Wind Tunnel (V/STOL) to determine the velocities in the recirculation region of the flow field produced by the interaction of a jet impinging on a ground plane with crossflow. Axial and vertical velocity component measurements were obtained with a forward-scattering laser Doppler velocimeter. Test results provide two- component velocity fields and indicate that the jet-to-free-stream velocity ratio is much more important in determining the flow field than the magnitude of the individual velocities.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1970
Accession Number
AD0711665

Entities

People

  • T. W. Binion Jr.

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Dynamic Pressure
  • Flow
  • Flow Fields
  • Forward Scattering
  • Free Stream
  • Frequency
  • Instrumentation
  • Measurement
  • Precision
  • Pressure Distribution
  • Scattering
  • Stagnation Point
  • Stratified Fluids
  • Test Facilities
  • Velocimeters
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Directed Energy