Publication Type
Conference Paper
Publication Date
Conference Name
7th US National Technical Meeting of the Combustion Institute
Conference Location
Atlanta, Georgia, United States of America
Conference Sponsor
Georgia Institute of Technology
Conference Date
-
Abstract
We describe a two-zone phenomenological model for simulating in-cylinder details in conventional, highdilution, and high-efficiency clean combustion in a diesel engine. Using this model we characterize the differences in these combustion modes in terms of 3D trajectories involving equivalence ratio, flame
temperature, and oxygen mass fraction. These trajectories in turn make it possible to better understand the relative NOx and particulate emissions of the different modes. The two-zone model predictions are shown to be consistent with more detailed CFD simulations and provide the benefit of very rapid simulation.
