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Multiphase Modelling of High-Pressure Diesel Sprays with an Eulerian-Eulerian Approach

Multiphase Modelling of High-Pressure Diesel Sprays with an Eulerian-Eulerian Approach

Diesel; multiphase; breakup

Diesel engines produce very harmful pollutant emissions, which cause environmental problems and can be harmful to the human health. Allowable pollutant emissions from diesel engines have been regulated for over than decade, and new and more stringent regulations are expected within this decade. In response to these regulations, the increase of fuel efficiency continues to be a major challenge in modern engineering development process. The performance and fuel efficiency of diesel engines highly depends on the injector atomizer system and resulting spray behaviour, particularly on the quality of fuel-air mixture, which is a key to maximizing fuel efficiency, and minimizing pollutant emissions of the engine. Therefore, the appropriate computer modelling of liquid-fuel spray dynamics is essential to provide the insights and understanding of the spray flows in diesel engines.