Accession Number:

AD0655526

Title:

AN EXPERIMENTAL INVESTIGATION OF THE EFFECT OF ELECTRICALLY INDUCED CONTROLLED FREQUENCY PERTURBATIONS ON BOUNDARY LAYER TRANSITION

Descriptive Note:

Technical rept.

Corporate Author:

OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS

Report Date:

1967-06-01

Pagination or Media Count:

106.0

Abstract:

An experimental investigation was conducted to determine the effects of corona discharge on boundary-layer transition. A flat plate was mounted in a low-turbulence wind tunnel. The location of transition was determined using a near-surface impact pressure probe. Boundary-layer excitation was accomplished by suspending a series of corona wires parallel to the plate outside the boundary layer. It was found that, under certain conditions, the transition point could be moved downstream upon application of a steady potential to the wires. Superposition of a pulsating potential did not influence the results over a wide range of pulsation frequency.

Subject Categories:

  • Aerodynamics
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE