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为了提高甲醇射流火焰数值模拟的精度,本文首先通过实验得到了甲醇蒸发率与温度的关系曲线,形成新的两相传质关系;其次应用基于Frank-Kamentsky近似的液滴着火模型和新的蒸发模型对某甲醇 空气射流火焰进行了数值模拟,将应用已有模型、仅应用蒸发模型、同时应用蒸发模型和着火模型(混合模型)的预报结果与实验结果对比检验.结果表明,应用蒸发模型的预报结果比已有模型的模拟结果更接近实验值,混合模型的预报结果最好.“,”In order to improve the accuracy of the numerical simulation of methanol spray flames,firstly,the methanol evaporation rate value relationship with temperature was obtained by experiments,which forms a new two phase mass transfer model.Secondly,a droplet ignition model under forced convection using Frank-Kamentsky's approxiination for treating the nonlinear reaction term is verified.A methanol-air spray flame numerical simulation was conducted using the new evaporation model combined with the droplet ignition model and the prediction results were verified by the experimental data.The comparison results showed that the prediction profiles using the evaporation model are closer to the experimental results than that of the old version model,and the closest profiles are from the simulation with both evaporation model and the ignition model.