Wake Measurements Behind a Magnetically-Suspended Spinning and Non-Spinning Ogive Cylinder at Angles of Attack.

Abstract

Total pressure measurements were performed in the wake of a magnetically-suspended ogive nosed cylinder immersed in a subsonic flow. Profile drag was computed by the momentum defect method and compared to magnetic balance measurements. Impact pressure wake profiles were then recorded to investigate the effects of varying Reynolds number, angle of attack, spin rate, and transition on wake characteristics. Fully turbulent boundary layer conditions served to attenuate this reverse Magnus force and promote a linear relationship between the induced sidewash angle and spin rate. Interpretation of the pressure surveys enabled a qualitative assessment of flow conditions about the body to be made, leading to suggestions as to a possible source of the observed phenomena. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1977
Accession Number
ADA037836

Entities

People

  • Charles W. Haldeman
  • Douglas M. Finn
  • Eugene E. Covert

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Dynamic Pressure
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Geometry
  • Hydrodynamics
  • Jet Propulsion
  • Measurement
  • Pressure Distribution
  • Pressure Gradients
  • Pressure Measurement
  • Static Pressure
  • Turbulent Flow
  • Turbulent Mixing
  • Two Dimensional
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Fluid Mechanics and Fluid Dynamics.