Interaction of Vortex Breakdown with a Flexible Fin and its Control

Abstract

This report results from a contract tasking University of Bath as follows: The contractor will investigate the fin buffeting caused by vortex breakdown and its control. In this phase, a flexible fin will be designed and fabricated. It consists of a thin brass spar surrounded by several balsa wood segments to provide aerodynamic shaping. Fin vibration levels will be sensed by root strain gages and tip accelerometers. Unsteady surface pressure measurements on the delta wing and underneath the vortex will be carried out in order to detect and quantify the oscillations of vortex breakdown location due to fin vibrations. Also, flow velocity measurements and visualization experiments will be carried out in U. of Bath water tunnel.

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Document Details

Document Type
Technical Report
Publication Date
Feb 13, 2001
Accession Number
ADA387547

Entities

People

  • Ismet Gursul

Organizations

  • University of Bath

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Delta Wings
  • Flow Visualization
  • Free Stream
  • Frequency
  • High Angles
  • Leading Edges
  • Low Angles
  • Measurement
  • Oscillation
  • Pressure Measurement
  • Pressure Transducers
  • Resonant Frequency
  • Spars
  • Strain Gages
  • Tunnels
  • Turbulent Mixing
  • Vibration

Fields of Study

  • Physics

Readers

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