In high pressure fuel injectors, needle opening and closing transients cause complex off-
design fluid dynamics behaviors that profoundly impact the spray and mixture formation …

This paper presents numerical and experimental analysis of diesel engine spray dynamics
in the region very close to the nozzle exit. Diesel fuel is injected through a single solid cone …

Experimental and numerical investigations of primary atomization in a high-pressure diesel
jet are presented. Information on flow processes and structures inside and near nozzle exit …

The needle shutdown of fuel injectors leads to an undesired fuel dribble that forms unburned
hydrocarbons and decreases the engine thermal efficiency in modern engines …

Gasoline fuel deposited on the fuel injector tip has been identified as a significant source of
particulate emissions at some operating conditions of gasoline direct-injection engines. This …

The fuel dribbling at the end-of-injection (EOI) transient is believed to be harmful to the
emission performance. However, quantitative characterization and detailed explanation of …

This work reports investigations on Diesel spray transients, accounting for internal nozzle
flow and needle motion, and demonstrates how seamless calculations of internal flow and …

Research on renewable and alternative fuels is crucial for improving the energy and
environmental efficiency of modern gasoline internal combustion engines. To highlight the …

The present work describes a numerical methodology and its experimental validation of the
flow development inside and outside of the orifices during a pilot injection, dwelt time and …

The salient features of modern gasoline direct injection include cavitation, flash boiling, and
plume/plume interaction, depending on the operating conditions. These complex …