Development of a Universal Turbulent Combustion Model for Premixed and Direct Injection Spark/Compression Ignition Engines Engine Research Center, University of Wisconsin-Madison

Format:

Conference/Event

Author/Creator:

Tan, Zhichao, author.

Conference Name:

SAE 2004 World Congress & Exhibition (2004-03-08 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2004

Summary:

A universal engine combustion model based on the level-set approach was developed in this study. It was first used to model combustion in Spark Ignition (SI) and Direct Injection Spark Ignition (DISI) engines when combined with the Discrete Particle Spark Ignition model, in which the ignition kernel is represented by particles. Once the flame kernel grows to a size that the turbulent flame is fully developed, the G-equation model is used to track the subsequent propagation of the turbulent flame. When combined with a characteristic time combustion model, the triple flame structure that is found in DISI engine combustion was successfully modeled. The model was also applied to simulate diesel combustion where the diffusion combustion regime is dominant. In this case, the ignition was modeled using the Shell auto-ignition model. Satisfactory agreement with features of the conceptual diesel combustion model of Dec [1997] was found. Thus the present model presents a universal combustion modeling methodology for all combustion regimes, that is called the GAMUT (G-equation for All Mixtures a Universal Turbulent) Combustion model

Notes:

Vendor supplied data

Publisher Number:

2004-01-0102

Access Restriction:

Restricted for use by site license