Technical Paper
Computational Study of the Equivalence Ratio Distribution from a Diesel Pilot Injection with Different Piston Geometry, Injection Timing and Velocity Initialization in a HSDI Engine
2014-04-01
2014-01-1110
In the new combustion strategies such as RCCI and dual-fuel combustion, the diesel pilot injection plays a pivotal role as it determines the ignition characteristics of the mixture and ultimately the combustion and emission performance. In this regard, equivalence ratio distribution resulted from the pilot injection becomes very important. In this work, computation study is carried out using KIVA-3V to simulate the engine compression stroke from intake valve close (IVC) to close to TDC so as to investigate the impact of piston geometry, injection start timing and flow initialization on the equivalence ratio distribution from a pilot injection in HSDI engine.
