Numerical Correlation of Combustion Evolution and Port and Combustion Chamber Shape in a High Speed, Four Valve, Spark Ignition Engine Universita' di Bologna

Format:

Conference/Event

Author/Creator:

Boretti, A. A., author.

Conference Name:

Motorsports Engineering Conference & Expostion (1994-12-05 : Dearborn, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1994

Summary:

High power output, four stroke, motorcycle engines are characterised by a complex combustion evolution strongly influenced by the properties of the averaged and turbulent flow field. In the present paper, state-of-the-art detailed computational methods are used to investigate the combustion evolution in a four cylinder, four valve per cylinder engine with a four-in-one exhaust where volumetric efficiencies and mixture compositions have been previously computed. Three dimensional unsteady computations of intake, compression, combustion and expansion strokes are performed. The method proves to be effective in qualitatively predicting heat release rate variations with engine speed and volumetric efficiency, while the simple modelling of the turbulent combustion does not allow to precisely define the magnitude of these variations

Notes:

Vendor supplied data

Publisher Number:

942534

Access Restriction:

Restricted for use by site license