Flow field effects on flame kernel formation in a spark-ignition engine
The effects of mixture turbulence and mean flow velocity on flame kernel formation in a spark-ignition engine were investigated using a disc-shaped optically accessible side chamber. Three-dimensional flow predictions and LDA measurements were performed to get a better understanding of the flow field in this combustion chamber. Thinwire electrodes were located at a peripheral and a central position introduced into the combustion chamber via the glass windows. High-speed schlieren films at 40 kHz were taken from two orthogonal directions to visualize in detail the formation and development of the flame kernel. The purpose was to gain a better understanding of the interaction of turbulence and flame during the first milliseconds after spark breakdown of a transistorized coil ignition system and a capacitor discharge ignition system.
- OSTI ID:
- 5892992
- Report Number(s):
- CONF-8810120-
- Country of Publication:
- United States
- Language:
- English
Similar Records
Turbulence effects on ignition flame kernel growth
Effect of unsteady stretch on spark-ignited flame kernel survival