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采用详细化学动力学机理,为AP/HTPB复合推进剂的燃烧建立了模型。该模型包含2个步骤:前一个是数据准备阶段,后一个是求解阶段。模型中包含了完整的固相、凝相和气相三相反应机理,其中气相反应机理由37个组分和127个反应步组成。为了提高模型的求解效率,用于评估化学反应的先进算法ISAT也被应用。最终,通过与试验结果的比较可看到,所建模型是可靠和精确的,并优于以往模型。
Using a detailed chemical kinetic mechanism, a model was established for the combustion of AP / HTPB composite propellants. The model consists of two steps: the first one is the data preparation phase and the second one is the solution phase. The model contains a complete three-phase reaction mechanism of solid phase, condensed phase and gas phase, in which the gas phase reaction mechanism consists of 37 components and 127 reaction steps. In order to improve the efficiency of model solving, ISAT, an advanced algorithm for evaluating chemical reactions, is also applied. Finally, comparing with the test results, we can see that the model is reliable and accurate, and is superior to the previous model.