Unsteady Flow Over a 6:1 Prolate Spheroid.

Abstract

The flow over a 6:1 prolate spheroid undergoing time dependent maneuvers is studied. The model is mounted on the Dynamic Plunge-Pitch-Roll (DyPPiR) model mount in the Virginia Tech Stability Wind Tunnel. he model undergoes 3O pitchup ramps in O.33s and a 13.50 submarine maneuver in O.25s. All tests are done at a Reynolds number of 4.2 million. Unsteady surface pressures, skid friction, and force and moment measurements are documented for these two maneuvers. In particular, time dependent separation locations are documented for the first time.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1996
Accession Number
ADA307141

Entities

People

  • Roger L. Simpson
  • Todd G. Wetzel

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Boundary Layer
  • Carbon Fibers
  • Computational Fluid Dynamics
  • Computational Science
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Mechanics
  • Hydrodynamics
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Pressure Distribution
  • Pressure Measurement
  • Resonant Frequency
  • Turbulent Mixing
  • Wind Tunnels

Fields of Study

  • Physics

Readers

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