Gas-Flow Switch Recovery Experiments

Abstract

Recovery experiments have been conducted with a flowinging gas spark gap using a two-dimensional, converging-diverging nozzle geometry. A two-pulse thyratron circuit supplied 10 kV- 30 kV pulses to a 0.318 em gap with a risetime of 10 micrometers. The relative self-breakdown voltage was recorded as a function of the pulse separation and gas velocity. The flow system consisted of a blow-down tunnel using air in which flow over the electrodes reached supersonic speeds at the higher total pressures. The flow field was characterized at several pressures by recording axial pressure distributions from which velocities were calculated. The spark gap recovery was found to be a strong function of the flow parameters especially at subsonic speeds where the recovery time was reduced to 0.15 ms as compared with 5.0 ms without flow.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1983
Accession Number
ADA636274

Entities

People

  • E. G. Ruf
  • G. M. Molen
  • J. M. Kuhlman
  • J. S. Bernardes

Organizations

  • Old Dominion University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Electrodes
  • Flow
  • Flow Fields
  • Flow Visualization
  • Gas Flow
  • Geometry
  • Measurement
  • Mechanical Engineering
  • Pressure Distribution
  • Pulsed Power
  • Recovery
  • Spark Gaps
  • Static Pressure
  • Two Dimensional
  • Waveforms
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Electrical Engineering

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow