2618 炭化水素乱流予混合火炎の局所火炎構造

概要

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Direct numerical simulations (DNS) of hydrocarbon-air turbulent premixed flames propagating in two-dimensional homogeneous isotropic turbulence are conducted to clarify the structure of turbulent premixed flames. Detailed kinetic mechanism including 279 elementary reactions and 49 reactive species is used to represent methane-air combustion and that including 325 elementary reactions and 53 reactive species is used for propane-air combustion. Local heat release rates are well correlated with curvatures of the flame front for both flames. Flames convex toward the burnt gas show large heat release rate, while those concave toward the burnt gas show relatively low heat release rate. Stretched flames in tangential direction show low NO production rate, while compressed flames show high NO production rate.
社団法人日本機械学会の論文
2000-07-31