D143 詳細な素反応過程を考慮した数値熱流体コードによるディーゼル燃焼の数値解析 : EGR条件下における検討(環境エンジン先進テクノロジー2)

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This paper describes with 3-dimentional Computational Fluid Dynamics study to predict ignition and combustion process of a passenger diesel engine under various O_2 concentration conditions. The 3-D CFD code used is KIVA-3V modified on a droplets collision model and velocity interpolation with PaSR turbulence-chemistry interaction model. Diesel oil surrogate mechanism in which oxidation of hydrocarbons, soot and NO_x formations were described was also used for Chemical reaction. As a result, predicted in-cylinder pressure and RHR histories have good agreement with measured ones. It can be predicted qualitative trends of measurement data of NO_x under wide range of O_2 concentration conditions.
社団法人日本機械学会の論文
2006-11-23