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Boundary Conditions for Combustion Field and LB Simulation of Diesel Particulate Filter

Published online by Cambridge University Press:  03 June 2015

Kazuhiro Yamamoto
Kazuhiro Yamamoto*
Affiliation:
Department of Mechanical Science and Engineering, Faculty of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603 Japan
*
*Corresponding author.Email:kazuhiro@mech.nagoya-u.ac.jp
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Abstract

A diesel particulate filter (DPF) is a key technology to meet future emission standards of particulate matters (PM), mainly soot. It is generally consists of a wall-flow type filter positioned in the exhaust stream of a diesel vehicle. It is difficult to simulate the thermal flow in DPF, because we need to consider the soot deposition and combustion in the complex geometry of filter wall. In our previous study, we proposed an approach for the conjugate simulation of gas-solid flow. That is, the gas phase was simulated by the lattice Boltzmann method (LBM), coupled with the equation of heat conduction inside the solid filter substrate. However, its numerical procedure was slightly complex. In this study, to reduce numerical costs, we have tested a new boundary condition with chemical equilibrium in soot combustion at the surface of filter substrate. Based on the soot oxidation rate with catalysts evaluated in experiments, the lattice Boltzmann simulation of soot combustion in the catalyzed DPF is firstly presented to consider the process in the after-treatment of diesel exhaust gas. The heat and mass transfer is shown to discuss the effect of catalysts.

Keywords

76S0580A2080A2580A32Lattice Boltzmann methodDPFheat conductionX-ray CTmultiphase flow
Type
Research Article
Information
Communications in Computational Physics , Volume 13 , Issue 3 , March 2013 , pp. 769 - 779
Copyright
Copyright © Global Science Press Limited 2013

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References

[1]Chen, S. and Doolen, G. D., Lattice Boltzmann method for fluid flows, Annu. Rev. Fluid Mech., 30 (1998), 329–364.Google Scholar
[2]He, X., Chen, S., and Doolen, G. D., A novel thermal model for the lattice Boltzmann method in incompressible limit, J. Comp. Phys., 146 (1998), 282–300.Google Scholar
[3]He, X. and Luo, Li-Shi, Lattice Boltzmann model for the incompressible Navier-Stokes equation, J. Stat. Phys., 88 (1997), 927–944.Google Scholar
[4]Inamuro, T., Yoshino, M., and Ogino, F., Lattice Boltzmann simulation of flows in a three-dimensional porous structure, Int. J. Numer. Meth. Fluids, 29 (1999), 737–748.Google Scholar
[5]Kittelson, D. B., Engines and nanoparticles: a review, J. Aerosol Sci., 29 (1998), 575–588.Google Scholar
[6]Kuo, K. K., Principles of Combustion, John Wiley & Sons, New York, 1986.Google Scholar
[7]Neri, G., Bonaccorsi, L.et al., Catalytic combustion of diesel soot over metal oxide catalysts, Applied Catalysis B: Environmental, 11 (1997), 217–231.Google Scholar
[8]Stamatelos, A. M., A review of the effect of particulate traps on the efficiency of vehicle diesel engines, Energy Conversion and Management, 38(1) (1997), 83–99.Google Scholar
[9]Tsuneyoshi, K., Takagi, O., and Yamamoto, K., Effects of washcoat on initial PM filtration efficiency and pressure drop in SiC DPF, SAE 2011 World Congress 2011-01-0817,2011, pp. 297–305.Google Scholar
[10]Yamamoto, K., LB simulation on combustion with turbulence, International Journal of Modern Physics B, 17(1/2) (2003), 197–200.CrossRefGoogle Scholar
[11]Yamamoto, K., He, X., and Doolen, G. D., Simulation of combustion field with lattice Boltz-mann method, J. Stat. Phys., 107 (2002), 367–383.Google Scholar
[12]Yamamoto, K. and Nakamura, M., Simulation on flow and heat transfer in diesel particulate filter, ASME Journal of Heat Transfer, 133(6) (2011), 060901.Google Scholar
[13]Yamamoto, K., Nakamura, M., Yane, H., and Yamashita, H., Simulation on catalytic reaction in diesel particulate filter, Catalysis Today, 153 (2010), 118–124.Google Scholar
[14]Yamamoto, K., Oohori, S., Yamashita, H., and Daido, S., Simulation on soot deposition and combustion in diesel particulate filter, Proceeding of the Combustion Institute, 32, 2009, pp. 1965–1972.Google Scholar
[15]Yamamoto, K., Satake, S., Yamashita, H., Takada, N., and Misawa, M., Lattice Boltzmann simu-lation on porous structure and soot accumulation, Mathematics and Computers in Simulation, 72 (2006), 257–263.CrossRefGoogle Scholar
[16]Yamamoto, K., Yamauchi, K., Takada, N., Misawa, M., Furutani, H., and Shinozaki, O., Lattice Boltzmann simulation on continuously regenerating diesel filter, Philosophical Transactions A (The Royal Society, London), 369 (2011), 2584–2591.Google Scholar