Unsteady flow aspects of purged spark gap recovery
Abstract
Experiments, analysis and computer modeling have been used to characterize the recovery of purged, high pulse rate spark gap switches. Both physical and computational models for spark gap recovery have been established and verified through repetitively pulsed experiments. A one-dimensional, unsteady flow computer program, and models and analyses for important multi-dimensional flow phenomena and radiative transport, were developed. Predictions compared very well with test data. Concepts for tuning pressure wave motion and the associated unsteady flow to enhance the purging of the hot spark residue and simultaneously restore the initial gas density were verified at pulse rates to 2500 Hz.
- Publication:
-
27th AIAA Aerospace Sciences Meeting
- Pub Date:
- January 1989
- Bibcode:
- 1989aiaa.meetT....T
- Keywords:
-
- Computerized Simulation;
- Spark Gaps;
- Switching Circuits;
- Unsteady Flow;
- Dielectrics;
- Gas Density;
- Gas Flow;
- Radiative Transfer;
- Electronics and Electrical Engineering