Modelling of TwoPhase Direct Cylinder Injection Department of Mechanical and Materials Engineering, University of Western Australia Orbital Engine Company (Australia)

Format:

Conference/Event

Author/Creator:

de Vos, Philip R., author.

Conference Name:

SAE 2000 World Congress (2000-03-06 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

As the world enters a new millennium, the spark ignition engine enters a new age of gasoline fuel injection technology direct injection. Orbital Engine Company is at the forefront of this technology with a unique, airassist direct injection (ADI) system, which utilises a lowpressure air pulse as fuel atomiser and carrier. Modelling of Orbital's ADI system was carried out using a EulerianLagrangian formulation for twophase flow with a commercially available CFD package called StarCD. The research has been a large step forward towards an improved predictive injection model for use in engine development.A simple model for simulating spray parameters was developed. This model involved the specification of initial airflow and droplet conditions, as initial results indicated that spray characteristics are strongly dependent on these initial conditions. Accurate specification of initial droplet size distributions was also determined to be necessary. The study demonstrates the high practical potential of twophase modelling of Orbital's ADI system. The final model accurately simulates spray parameters over a fairly wide range of injection conditions

Notes:

Vendor supplied data

Publisher Number:

2000-01-1393

Access Restriction:

Restricted for use by site license