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从化学的详细基元反应出发,通过分析化学反应过程和灵敏度,识别反应过程中的“主干”反应,建立起具有基元反应形式的简化反应动力学模型,再采用遗传算法来优化调整基元反应阿累尼乌斯(Arrehnius)公式中的系数,使简化模型的计算精度尽可能与详细基元反应模型相当,从而建立一种简化化学反应动力学模型的新方法。通过分析典型甲烷点火燃烧算例的初步计算表明,该方法的应用前景较好。
Starting from the detailed chemical elementary reaction, the “backbone” reaction during the reaction is identified by analyzing the chemical reaction process and sensitivity, and a simplified reaction kinetic model with the elementary reaction form is established, and then the genetic algorithm is used to optimize the adjustment Primitive response coefficients in the Arrehnius formula make the computational accuracy of the simplified model comparable to that of a detailed elementary reaction model as much as possible to establish a new approach to simplify the kinetic model of a chemical reaction. The preliminary calculation of a typical methane ignition combustion example shows that the method has a good application prospect.