Accession Number:

ADA636274

Title:

Gas-Flow Switch Recovery Experiments

Descriptive Note:

Conference paper

Corporate Author:

OLD DOMINION UNIV NORFOLK VA DEPT OF ENGINEERING MANAGEMENT AND SYSTEMS ENGINEERING

Report Date:

1983-06-01

Pagination or Media Count:

5.0

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.

Subject Categories:

  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE