Effect of Air Motion on Fuel Spray Characteristics in a Gasoline Direct Injection Engine
1999-01-0177
03/01/1999
- Event
- Content
- Numerical simulation was carried out to investigate the effect of transient in-cylinder air motion on fuel spray characteristics in a side-injection gasoline direct injection engine. KIVA-3V code with a fuel spray impingement model was used to simulate a swirl flow driven stratification for a late injection mode. For better understanding of in-cylinder air motion during the induction and compression strokes a flat piston and a bowled piston are compared with each other. Also a simplified simulation considering only the compression stroke was compared with the full simulation. As the high-pressure fuel spray jet flow is much stronger than ambient swirl and tumble flow in the present combustion system the spray development shows similar behavior in both simulations.
- Pages
- 11
- Citation
- Kim, Y., Lee, S., and Cho, N., "Effect of Air Motion on Fuel Spray Characteristics in a Gasoline Direct Injection Engine," SAE Technical Paper 1999-01-0177, 1999, https://doi.org/10.4271/1999-01-0177.