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The European Physical Journal Special Topics

, Volume 171, Issue 1, pp 205–212 | Cite as

Fluid simulation and X-ray CT images for soot deposition in a diesel filter

  • K. YamamotoEmail author
  • S. Satake
  • H. Yamashita
  • N. Takada
  • M. Misawa
Article

Abstract

Recently, stricter diesel particulate emission standards have been set in many countries. As for the after-treatment of exhaust gas, a diesel filter has been developed to trap diesel particles inside small-scale porous structure. Since measurement of flow in the filter is impossible, the phenomena of particle deposition in the filter are not well understood. In this study, we conducted Lattice Boltzmann simulation on flow in the newly developed diesel filter. The soot deposition was included to consider the particle trap in the filter. The inner structure of the diesel filter as well as trapped soot region was scanned by an X-ray CT technique. Results show that the flow pattern is largely changed when the soot is attached to the filter surface. By comparing simulation results with CT images, soot accumulation region is well predicted. It is found that the amount of trapped soot is proportional to the filter back-pressure even when soot deposition probability is changed.

Keywords

Diesel European Physical Journal Special Topic Soot Particle Lattice Boltzmann Soot Concentration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences and Springer 2009

Authors and Affiliations

  • K. Yamamoto
    • 1
    Email author
  • S. Satake
    • 1
  • H. Yamashita
    • 1
  • N. Takada
    • 2
  • M. Misawa
    • 2
  1. 1.Department of Mechanical Science and EngineeringNagoya UniversityAichiJapan
  2. 2.National Institute of Advanced Industrial Science and Technology (AIST)IbarakiJapan

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