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为研究含能材料在激光作用下的点火特性,从基本守恒方程组出发,基于详细化学反应动力学模型,建立了含能材料激光点火的气相模型。利用所建立的模型对RDX在激光辐照下的点火过程进行了数值模拟,得到了点火过程中的瞬时温度分布和组分分布,对点火特性进行了分析。计算得到的不同激光功率密度下的RDX点火延迟时间与文献结果一致。
In order to study the ignition characteristics of energetic materials under laser irradiation, a gas phase model of laser ignition of energetic materials was established based on the detailed chemical reaction kinetics model from the basic conservation equations. The ignition process of RDX under laser irradiation was numerically simulated with the established model. The instantaneous temperature distribution and composition distribution during ignition were obtained, and the ignition characteristics were analyzed. The calculated RDX ignition delay time under different laser power densities is consistent with the literature results.