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首页> 外文期刊>Journal of Aeronautics & Aerospace Engineering >Interaction of Spherical Flames of Hydrogen-Air and Methane-Air Mixtures in the Closed Reactor at the Central Spark Initiation with Closed Meshed Obstacles
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Interaction of Spherical Flames of Hydrogen-Air and Methane-Air Mixtures in the Closed Reactor at the Central Spark Initiation with Closed Meshed Obstacles

机译：密闭反应堆中氢-甲烷和甲烷-空气混合物的球形火焰在中心火花起始处与密闭网状障碍物的相互作用

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摘要

It is shown that spark initiated flames of lean hydrogen-air mixtures (8%-15% H,) pass through close-meshed aluminum spherical obstacles with the cell size 0.04-0.1 mm?; the flame of 15% H, in air after an obstacle is accelerated; acoustic gas fluctuations occur in the reactor. The flame of 7.5% hydrogen-air mixture does not propagate through the obstacles the flame of 8% natural gas-air mixture is not accelerated after an obstacle; acoustic fluctuations are missing. It is shown that active centers of methane and hydrogen combustion, determining flame propagation, have different chemical nature.
机译：结果表明，稀薄的氢-空气混合物（8％-15％H）的火花引发的火焰穿过气泡尺寸为0.04-0.1 mm？的密闭铝球形障碍物;障碍物加速后在空气中的15％H火焰;反应器中会发生声学气体波动。 7.5％氢气-空气混合物的火焰不会通过障碍物传播。8％天然气-空气混合物的火焰不会在障碍物之后加速;缺少声音波动。结果表明，决定火焰传播的甲烷和氢气燃烧活动中心具有不同的化学性质。

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