The present study is mainly motivated to investigate the vaporization, auto-ignition and combustion processes in the high-pressure engine conditions. The high-pressure vaporization model is developed to realistically simulate the spray dynamics and vaporization characteristics in high-pressure and high-temperature environment. The interaction between chemistry and turbulence is treated by employing the Representative Interactive Flamelet (RIF) Model. The detailed chemistry of 114 elementary steps and 44 chemical species is adopted for the n-heptane/air reaction. In order to account for the spatial inhomogeneity of the scalar dissipation rate, the multiple RIFs are introduced. Numerical results indicate that the RIF approach together with the high-pressure vaporization model successfully predicts the ignition delay time and location as well as the essential features of a spray ignition and combustion processes.
Numerical Modeling for Auto-Ignition and Combustion Processes of Fuel Sprays in High-Pressure Environment
Sae Technical Papers
SAE 2001 World Congress ; 2001
2001-03-05
Aufsatz (Konferenz)
Englisch
Modeling of auto-ignition in diesel sprays using pdf approach
SAE Technical Papers | 1999
|Modeling of Auto-Ignition and Combustion Processes for Dual-Component Fuel Spray
SAE Technical Papers | 2011
|Ignition of fuel sprays by shock wave mathematical modeling and numerical simulation
Online Contents | 2013
|