Gasoline engine simulations using zero-dimensional spark ignition stochastic reactor model and three-dimensional computational fluid dynamics engine model

Gasoline engine simulations using zero-dimensional spark ignition stochastic reactor model and three-dimensional computational fluid dynamics engine model

Type	Journal Article
Author	Michal Pasternak
Author	Fabian Mauss
URL	http://jer.sagepub.com/content/17/1/76
Volume	17
Issue	1
Pages	76-85
Publication	International Journal of Engine Research
Date	2016-01-01
Abstract	Presents a simulation process for spark ignition gasoline engines. The process is based on a zero-dimensional spark ignition stochastic reactor model and three-dimensional computational fluid dynamics of the cold in-cylinder flow. Researchers conducted the cold flow simulations to analyze changes in the turbulent kinetic energy and its dissipation. Results enable estimation of the volume-averaged turbulent mixing time that is a primary input parameter for the spark ignition stochastic reactor model. Researchers used the spark ignition stochastic reactor model to simulate combustion progress and to analyze auto-ignition tendency in the end-gas zone based on the detailed reaction kinetics. The process bridges the gap between three-dimensional and zero-dimensional models and is applicable to various engine concepts, such as, port-injected and direct injection engines, with single and multiple spark plug technology. The modelling makes it possible to predict combustion effects and estimate the risk of knock occurrence at different operating points or new engine concepts for which limited experimental data are available.