5007 Local Flame Displacement Velocity of Hydrogen added Propane Premixed Turbulent Flames

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  • 5007 水素添加プロパン予混合乱流火炎の局所火炎伝ぱ特性に関する実験的検討(S50-2 乱流燃焼の実験と数値シミュレーション(2),S50 乱流燃焼の実験と数値シミュレーション)

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The influence of the addition of hydrogen to propane mixtures on its local burning velocity is investigated directly. Hydrogen added lean and rich propane mixtures having nearly the same laminar burning velocity with different rates of addition of hydrogen are prepared. A two-dimensional sequential laser tomography technique is used to obtain the temporal statistical relationship between the flame shape and the flame displacement. The local flame displacement velocity S_F is quantitatively obtained as the key parameters of the turbulent combustion. The obtained S_F is also discussed by the concept of Markstein number.

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