Prediction of Combustion Delay and -Duration of Homogeneous Charge Gasoline Engines based on In-Cylinder Flow Simulation Institute for Combustion Engines, RWTH-Aachen University

Format:

Conference/Event

Author/Creator:

Wiese, Wolfram, author.

Conference Name:

Powertrains, Fuels and Lubricants Meeting (2009-06-15 : Florence, Italy)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2009

Summary:

In this paper a new approach is presented to evaluate the combustion behaviour of homogeneous gasoline engines by predicting burn delay and -duration in a way which can be obtained under the time constraints of the development process. This is accomplished by means of pure in-cylinder flow simulations without a classical combustion model. The burn delay model is based on the local distribution of the turbulent flow near the spark plug. It features also a methodology to compare different designs regarding combustion stability. The correlation for burn duration uses a turbulent characteristic number that is obtained from the turbulent flow in the combustion chamber together with a model for the turbulent burning velocity. The results show good agreement with the combustion process of the analyzed engines

Notes:

Vendor supplied data

Publisher Number:

2009-01-1796

Access Restriction:

Restricted for use by site license