B131 A Modeling of Turbulent Burning Velocity for Hydrogen Mixtures based on Local Burning Velocity

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  • B131 局所燃焼速度に基づく水素予混合気乱流燃焼速度の整理(OS-2 環境負荷低減のための燃焼研究と技術開発III)

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This study is made to attempt to establish a prediction model of turbulent burning velocity for hydrogen mixtures based on the mean local burning velocity estimated by taking the preferential diffusion into consideration S_L, instead of the laminar burning velocity S_<LO>. The S_L is estimated for the specific mixtures having the same S_<LO> by adding nitrogen to hydrogen-air mixtures, where S_<LO> as well as the equivalence ratio are varied extensively, in order to confirm the effect of u'/S_<LO>. It is found that accuracy of the proposed simple mode can be improved by using S_L with respect to u'/S_<LO>.

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