KIVA3V와 SWEEP을 이용한 디젤 엔진에서의 soot 총량 및 입자 크기 분포 예측

Prediction of Soot Emissions and Particle Size distribution by KIVA3V and SWEEP in a diesel engine

Computation is performed to predict number density, volume fraction and size distribution of soot particles in typical operating conditions of a diesel engine. KIVA has been integrated with the CMC routine to consider turbulence/chemistry coupling and gas phase kinetics for heat release and soot precursors. The compositions of soot precursors are estimated by tracking Lagrangian particles to consider spatial inhomogeneity and differential diffusion in KIVA. The soot simulator SWEEP is employed as a postprocessing step to calculate conditional and integral quantities of soot particles.