预混合燃烧现象学紊流火焰速度模型

提出了一个用于预混合燃烧的现象学紊流火焰速度模型，描述了火焰从层流传播到充分发展的紊流传播的全过程。基于火焰瞬时尺度和基本的紊流特性参数，按照火焰生长的各个阶段，将紊流火焰速度的计算分为３个步骤，以有效紊流强度显示从层流传播到紊流传播的转化，以紊流积分标尺和梅尔莫哥洛夫标尺作为火焰皱折程度的度量，考虑了火焰表面扭曲对火焰速度的作用。计算结果与测量数据的比较显示了较好的一致性。

Phenomenological Turbulent Flame Velocity Model for Premixed Combustion

A phenomenological turbulent flame velocity model is proposed for premixed combustion.Based on the instantaneous flame scale and basic turbulent characteristic paramerters,this model describes the whole process of the flame developing from laminar propagation to fully devloped turbulent propagation.The flame velocity is calculated in three steps according to the different flame growth phases.The effective turbulent intensity is used to describe the translation from laminar flame to turbulent flame.The flame wrinkle is considered with turbulent integral scale and Kolmogorov scale.The effect of flame surface torsion on the flame velocity is included.The comparison of the calculated results with experiment data shows good agreement.