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

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.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1967
Accession Number
AD0655526

Entities

People

  • Henry R. Velkoff
  • Jeffrey J. Ketcham

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Cyber
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Boundary Layer
  • Boundary Layer Transition
  • Computational Fluid Dynamics
  • Dynamic Pressure
  • Electrical Equipment
  • Fluid Dynamics
  • Frequency
  • Heat Transfer
  • Laminar Boundary Layer
  • Measurement
  • Pressure Distribution
  • Pressure Gradients
  • Static Pressure
  • Transitions
  • Turbulence
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Combustion and Flow Dynamics.
  • Electrical Engineering