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提出了更为合理的氢气-空气混合物的单步反应模型和输运系数模型建立方法.针对氢-空气单步反应方程式H2+0.5O2→H2O,其反应速率模型为=1.13×1015[H2][O2]exp(46.37T0/T)mol/(cm3s),输运系数模型为=K/CP=D=7.0×105T0.7g/(cms).采用该模型和文献模型对ZND爆轰和自由传播层流火焰进行模拟,二者结果具有很好的一致性.另外还采有本文模型模拟了障碍通道内燃烧转爆轰过程,模拟结果与实验结果基本一致.验证了本方法和模型的正确性.
A more reasonable hydrogen-air mixture single-step reaction model and transport coefficient model establishment method are proposed.For the hydrogen-air single-step reaction equation H2 + 0.5O2 → H2O, the reaction rate model is = 1.13 × 1015 [H2] (O2) exp (46.37T0 / T) mol / (cm3s), the transport coefficient model is = K / CP = D = 7.0 × 105T0.7g / (cms) .Using this model and the literature model, The propagation of laminar flow flame is simulated, and the results are in good agreement. In addition, the model of this model is adopted to simulate the process of combustion detonation and detonation in the barrier passageway, and the simulation results are basically consistent with the experimental results. The correctness of the method and the model is verified Sex.