Accurate Reduction of Combustion Chemistry Mechanisms Using a Multi-zone Model Reaction Design

Format:

Conference/Event

Author/Creator:

Chou, Chen-Pang, author.

Conference Name:

SAE World Congress & Exhibition (2008-04-14 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2008

Summary:

Automated mechanism reduction is important in enabling the use of kinetics data in engineering design. In this work, we report on a mechanism-reduction technique that serves as a practical tool for automated mechanism reduction when applied to engine-simulation, with particular focus on compression-ignition engines. For this application, a multi-zone engine model has been developed, which can capture the stratification in the engine due to crevice and boundary-layer cooling effects. The multi-zone model serves as the workhorse for the mechanism-reduction algorithm. The reduction process is designed to operate on model-solution data from a parametric matrix of runs, in which the multi-zone model is run under different conditions. A more accurate reduction can therefore be achieved while accounting for spatial variations in the engine, temporal variations over the compression cycle, and variations in operating conditions. Results compare the simulation using a skeletal mechanism vs. a fully detailed mechanism for a multi-component gasoline chemistry model

Notes:

Vendor supplied data

Publisher Number:

2008-01-0844

Access Restriction:

Restricted for use by site license