Accurate Reduction of Combustion Chemistry Mechanisms Using a Multi-zone Model 2008-01-0844
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.
Citation: Chou, C., Wang, C., Puduppakkam, K., and Meeks, E., "Accurate Reduction of Combustion Chemistry Mechanisms Using a Multi-zone Model," SAE Technical Paper 2008-01-0844, 2008, https://doi.org/10.4271/2008-01-0844. Download Citation
Author(s):
Chen-Pang Chou, Cheng Wang, Karthik Puduppakkam, Ellen Meeks
Affiliated:
Reaction Design
Pages: 11
Event:
SAE World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Modeling of SI and Diesel Engines, 2008-SP-2156
Related Topics:
Diesel / compression ignition engines
Mathematical models
Combustion and combustion processes
Simulation and modeling
Gasoline
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