Numerical Simulation on Distribution Characteristics of Particle Distribution Uniformity in a Radial Style Diesel Particulate Filter

2012 ◽  
pp. 795-805
Author(s):  
Gong Jinke ◽  
Tian Chan ◽  
Wu Gang
Keyword(s):  
Numerical Simulation ◽  
Diesel Particulate Filter ◽  
Particle Distribution ◽  
Particulate Filter ◽  
Distribution Characteristics ◽  
Diesel Particulate ◽  
Distribution Uniformity

scholarly journals Investigation on Gas-Soot Flow Distribution Characteristic of Soot Capture Process in the Wall-Flow Diesel Particulate Filter

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Jianyu Li ◽  
Chunping Lu ◽  
Dongli Tan
Keyword(s):  
Mathematical Model ◽  
Diesel Particulate Filter ◽  
Flow Distribution ◽  
Conservation Equation ◽  
Particulate Filter ◽  
Phase Flow ◽  
Distribution Characteristics ◽  
Two Phase ◽  
Capture Process ◽  
Diesel Particulate

In order to investigate the distribution characteristics of gas-particle two-phase flow in the diesel particulate filter in the capture process, a mathematical model of gas-particle two-phase flow for inside-and-outside filter had been established in the capture process according to the mass conservation equation, momentum conservation equation, and k-ε turbulence equation. The model verification was carried out with the experimental and simulated of flow distribution characteristics of gas-particle two-phase. The obtained results showed that the static pressure gradient along the radial distribution was greater at the inlet of the filter in capture process in the diesel particulate filter, which could easily lead to causing eventual fatigue damage due to stress concentration in the front-end of filter; moreover, the weaker the vortex strength of gas-particle formed in expansion pipe was, the better uniformity of flow velocity and soot concentration distribution were. Therefore, the established mathematical model can be used for predicting gas-particle flow velocity distribution in the diesel particulate filter.

Study on Particulate Accumulated Characteristics of Diesel Particulate Filter

2012 ◽  
Vol 229-231 ◽  
pp. 331-335
Author(s):  
Da Hai Jiang ◽  
Guang Tao Yao ◽  
Xin Yun Zi ◽  
Hong Wei Liu ◽  
Ming Mao
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Pressure Loss ◽  
Diesel Particulate Filter ◽  
Back Pressure ◽  
Particulate Filter ◽  
Particulate Matters ◽  
Diesel Particulate ◽  
Exhaust Temperature ◽  
Failure Monitoring

The paper has carried out numerical simulation and experimental study on the pressure loss of filter. Based on pressure loss model of filter, research methods of particulate accumulated characteristics has proposed according to the exhaust flow, exhaust temperature and exhaust back pressure. Meanwhile, the model is important for the online calculation of accumulated particulate matters in the filters and failure monitoring of diesel particulate filter.

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