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입자상물질 포집과 재생에 따른 DPF 내 열적 상태와 온도분포 천이에 관한 다차원 해석
이상민(Sang-Min Lee),기완도(Wan-do Kee),정승채(Seung-chai Jung),윤웅섭(Woong-sup Yoon) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Particularly for its engineering application, a three-dimensional prediction of thermal regeneration process is essential. In the present study, one-dimensional thermodynamics models on the thermal regeneration is incorporated into a three-dimensional flow modeler in order to investigate the evolution of the thermal regeneration in a wall-flow DPF. Configuration of DPF flows is simplified by a fully developed inlet flow and multiple channels as a continuous porous flow passage. The model is properly validated with one-dimensional evolution. The thermal regeneration is initially more active in the middle zone of the DPF and propagates gradually into the DPF periphery. With increasing in the regeneration temperature, changes in the PM and temperature profiles in the DPF becomes more gradual.