高強度乱流予混合火炎の微細構造

概要

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It has been believed that a distributed reaction zone is established and the flame thickness increases in the case of a high-intensity turbulent flame. However, such a structure has not been directly observed. In the present study, an attempt is made to explore the microstructure of a high-intensity turbulent flame based on signals measured using an electrostatic probe. Comparing the characteristics of experimentally obtained signals with those of predicted signals assuming various flame thicknesses, it is elucidated that even in a considerably high-intensity shear flow region where a turbulent intensity (root-mean-square value of velocity fluctuations) is much higher than the laminar burning velocity and the Kolmogoroff scale of turbulence is smaller than the laminar flame thickness, the flame thickness is close to that of a laminar premixed flame.
一般社団法人日本機械学会の論文
1989-12-25