Reattachment of a Separated Boundary Layer on a Flat Plate in a Highly Adverse Pressure Gradient Using a Plasma Actuator (Postprint)

Abstract

An experimental study was performed to examine the phase-dependent response characteristics of a dielectric barrier discharge plasma flow control actuator. The actuator was investigated on a fully separated flat plate boundary layer with an adverse freestream pressure gradient distribution. The actuator was positioned downstream of the boundary layer separation. Phase-locked particle image velocimetry (PIV) was used to obtain two-dimensional velocity field measurements at thirty equally spaced phase-angles along the sinusoidal voltage input to the actuator. A subtle phase-dependence was observed in the response of the streamwise (U-velocity) component of boundary layer velocity field. No similar phase-dependence was observed in the vertical direction (V-component of velocity).

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2006
Accession Number
ADA484281

Entities

People

  • Issac G. Boxx
  • Jeffery M. Newcamp
  • Nathan M. Woods
  • Richard B. Rivir

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Actuators
  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Boundaries
  • Boundary Layer
  • Boundary Layer Flow
  • Flow
  • Fluid Flow
  • Hypervelocity Flow
  • Layers
  • Measurement
  • Pressure Distribution
  • Pressure Gradients
  • Stratified Fluids
  • Turbines
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Toxicology/Environmental Toxicology

Technology Areas

  • Space
  • Space - Hall-Effect Thruster