The fuel metering accuracy, the rate of the fuel introduction in
the combustion chamber, the consequent spray evolution, fuel
atomization and mixing with surrounding air determine the combustion
development and hence the engine performance along
with its pollutant emissions and noise [1–4]. In order to properly
design the combustion system operation, the injection system
behavior must be controlled and matched with the combustion
chamber shape and with the in-cylinder flow field in a wide
range of operating conditions. This complex task can be
accomplished only by a combined experimental and numerical
approach.