Experimental Study on Turbulent Burning Velocity of Hydrogen Mixtures

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  • H233 水素混合気の乱流燃焼速度特性に関する実験的検討

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Turbulent burning velocity characteristics of hydrogen mixtures with having the same laminar burning velocity are investigated experimentally in the present study, where the laminar burning velocity S_<L0> and the equivalence ratio Φ are varied extensively. The measured turbulent burning velocity at the same turbulence intensity shows to increase as Φ decreases, regardless of S_<L0>. That, however, becomes to depend on the characteristics chemical time when Φ is as low as around 1.0. This phenomenon is discussed by the estimated mean local burning velocity taking account of the preferential diffusion effect and the obtained turbulent flame images.

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