A Diesel spray and combustion model has been connected with the KIVA code to simulate combustion phenomena in a Diesel Engine equipped with a common rail injection system. The paper provides an overview of the sub models used for mixture formation like liquid core atomization droplet secondary break up and high pressure evaporation model. Auto ignition and combustion are respectively described by a shell and characteristics time models. The combustion modeling predictions are compared to measurements. Finally a sensitivity analysis on grid spacing, time step, and number of fuel parcels injected is carried out.
Numerical Analysis of Autoignition in DI Diesel Engine
POSTRIOTI, Lucio
2002
Abstract
A Diesel spray and combustion model has been connected with the KIVA code to simulate combustion phenomena in a Diesel Engine equipped with a common rail injection system. The paper provides an overview of the sub models used for mixture formation like liquid core atomization droplet secondary break up and high pressure evaporation model. Auto ignition and combustion are respectively described by a shell and characteristics time models. The combustion modeling predictions are compared to measurements. Finally a sensitivity analysis on grid spacing, time step, and number of fuel parcels injected is carried out.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
