しわ状層流火炎構造を持つ乱流予混合火炎の燃焼速度に関する研究 : 振動火炎の挙動と火炎面伝播モデル

概要

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From experimental results on vibrating flames with a wrinkled laminar flame structure, it was clarified that the average surface area of the vibrating flame equals to the surface area of an equivalent laminar flame. And the local burning velocities of the flame element are not affected by the surface stretching which were generated by the flame curvature. So, the wrinkles on the flame surface carried downstrem from the upstream, and steady velocity gradients in the unburnt regime have no influence on the averaged burning velocity. It was concluded that the fluctuations of the wrinkled laminar flame carried downstrem from the upstream, does not affect the turbulent burning velocity, even though the fluctuations becomes large in a steady stream involving smooth velocity gradients. These results were confirmed with a newly developed flame-propagation model.
一般社団法人日本機械学会の論文
1995-06-25