Numerical simulation for air and air-PM flow in wall flow diesel particulate filters

被引：0

作者：

Zhao, Binjuan ^{[1
]}

Yuan, Shouqi ^{[2
]}

Kato, Seizo ^{[3
]}

Nishimura, Akira ^{[3
]}

机构：

[1] School of Energy and Power Engineering, Jiangsu University

[2] Research Center of Fluid Machinery Engineering and Technology, Jiangsu University

[3] Department of Mechanical Engineering, Faculty of Engineering, Mie University, Tsu, 514-8507

来源：

Chinese Journal of Mechanical Engineering (English Edition) | 2005年 / 18卷 / 02期

关键词：

Numerical simulation; Two-phase flow; Wall flow diesel particulate filter;

D O I：

10.3901/cjme.2005.02.183

中图分类号：

学科分类号：

摘要：

Numerical simulations are performed both for the single airflow and air-PM (particulate matter) two-phase flow in wall flow diesel particulate filters (DPF) for the first time. The calculation domain is divided into two regions. In the inlet and outlet flow channels, the simulations are performed for the steady and laminar flow; In the porous filtration walls, the calculation model for flow in porous media is used. The Lagrange two-phase flow model is used to calculate the air-PM flow in DPF. For the dispersed phase in PM case, its flow tracks are obtained by the integrating of the Lagrange kinetic equation. The calculated velocity, pressure distribution and PM flow tracks in DPF are obtained, which exhibit the main flow characteristics in wall flow DPF and are helpful to the optimal design and performance prediction of wall flow DPF.

引用

页码：183 / 186

页数：3

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