Accession Number:

ADA456968

Title:

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

Descriptive Note:

Conference paper

Corporate Author:

AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH PROPULSION DIRECTORATE

Report Date:

2006-06-01

Pagination or Media Count:

12.0

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.

Subject Categories:

  • Machinery and Tools
  • Electricity and Magnetism
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE