0721 メタルハニカム内の流れとディーゼル微粒子の燃焼過程の数値解析(S43-1 エンジンにおける計測およびモデリング(1),S43 エンジンにおける計測およびモデリング)

概要

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Recently, the share of a diesel car in the world is gradually increased, because diesel engines have an advantage of low fuel consumption in comparison with gasoline engines. However, several problems must be solved. One of the major concerns is that diesel exhaust gas has more particulate matters (PM) including soot, which are suspected to be linked to human carcinogen. Due to more strict exhaust gas regulations, diesel particulate filters have been developed. In this study, we conduct Lattice Boltzmann simulation on combustion in metal honeycomb filter. The inner structure is simplified to insert metal obstacles with square shape in 2-D duct flow. These are placed uniformly with the porosity of 0.8. To vary the flow characteristics, we change the arrangement and size of metal obstacles of the metal filter. Results show that the combustion reaction is well simulated to observe the burning of soot particle in the metal filter.
一般社団法人日本機械学会の論文
2007-09-07