combustion modeling for modern direct injection diesel engines

in order to comply with stringent pollutant emissions regulations, a detailed analysis of the engine combustion and emission is required. in this field, computational tools like cfd and engine cycle simulation play a fundamental role. therefore, the goal of the present work is to simulate a high speed di diesel engine and study the combustion and major diesel engine emissions with more details, by using the avl-fire commercial cfd code. the predicted values of the in cylinder pressure,  heat release rate, emissions, spray penetration and in-cylinder isothermal contour plots by this code are compared with the corresponding experimental data in the literature and is derived good agreement. this agreement makes the model a reliable tool that can use for exploring new engine concepts.