ABSTRACT The reaction model of aluminum particles is the key to successfully simulate the two-phase detonation of aluminum suspensions. In this study, by considering the decomposition of the aluminum oxide (Al2O3) product at high temperature, the reaction model for aluminum particles is improved and is incorporated into the numerical code. Then numerical simulations for two-phase detonations of Al/air mixtures and Al/O2 mixtures are performed, respectively, the simulated results for the peak pressure and the speed of the two-phase detonation wave are in agreement with the experimental results, which demonstrate the validity of the improved aluminum reaction model. Moreover, the detonation parameters and the distributions of the physical quantities around the detonation wave are analyzed.

中文翻译：

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气铝颗粒混合物爆轰的两相反应模型

摘要 铝颗粒反应模型是成功模拟铝悬浮液两相爆轰的关键。本研究通过考虑高温下氧化铝（Al2O3）产物的分解，改进了铝颗粒的反应模型并将其纳入数值代码。然后分别对Al/空气混合物和Al/O2混合物的两相爆轰进行数值模拟，两相爆震波的峰值压力和速度的模拟结果与实验结果一致，表明改进的铝反应模型的有效性。此外，还分析了爆轰参数和爆轰波周围物理量的分布。