Abstract
In DI diesel engines, atomization and evaporation of fuel sprays greatly affects the engine performance and pollutant emissions. In this study, atomization and evaporation process of diesel sprays injected into a high-pressure and temperature inert gas atmosphere made by a RCM were investigated using a magnified nanosecond photography method. Using this technique, the authors were able to clearly observe the large size vortical structures at downstream of spray. The results show that spray evaporation is very active around these vortical structures.
