Blast waves produced by a time-dependent energy source
Abstract
The dynamics of a spherical blast wave produced by an arbitrary time-dependent energy source are investigated both theoretically and experimentally. The blast wave in air is produced by an electrical discharge in a small cavity (a plasma jet used for internal combustion engine ignition). High-speed streak and Schlieren frame photography are used to measure the front of the self-luminous plasma and the shock wave, respectively. A numerical Eulerian model based on the gasdynamic equations in conservation form is used to predict positions of the luminosity front and the shock wave. Good agreement is obtained between theory and experiment.
- Publication:
-
AIAA Journal
- Pub Date:
- June 1979
- DOI:
- 10.2514/3.61183
- Bibcode:
- 1979AIAAJ..17..601O
- Keywords:
-
- Detonation Waves;
- Flow Visualization;
- Luminous Intensity;
- Shock Fronts;
- Spherical Waves;
- Cavities;
- Electric Discharges;
- Gas Dynamics;
- Plasma Jets;
- Plasma Waves;
- Schlieren Photography;
- Fluid Mechanics and Heat Transfer