유동분포 개선을 위한 DPF 확대관 형상 특성

Numerical study has been conducted for improving air flow characteristics in the exhaust aftertreatment system of diesel-fueled passenger cars by changing length and shape of a DPF diffuser using a commercial CFD code. The results of axial velocity and static pressure distributions along with air flow uniformity results show that a diffuser shape like 2D or 3D function type is proposed for the better air flow patterns in front of a DPF.