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本文提出一个描述AP爆燃的物理化学模型,并计算了AP晶粒在10～800大气压下的爆燃速度、压力指数、燃面温度等参数值,计算结果和T.L. Boggs等人的实验结果相符文中提出AP爆燃过程中,在低压和高压下,可能存在着两种不同的凝聚相反应机理,并用以解释Boggs的实验现象。此外,本文还提出了一种描述绝热体系中,预混火焰燃烧时的化学反应速度表示式和计算方法,使气相温度梯度及热传导的计算简单合理,这也是本模拟研究取得成功的因素之一。
In this paper, we present a physical-chemical model describing AP deflagration and calculate APD parameters such as deflagration velocity, pressure exponent, and combustion surface temperature at 10-800 atmospheres. Computational results are in line with the experimental results of TL Boggs et al. During the deflagration of AP, two different mechanisms of coacervate phase reaction may exist at low pressure and high pressure to explain the experimental phenomena of Boggs. In addition, this paper also presents a representation of the chemical reaction rate and calculation method of premixed flame combustion in an adiabatic system, which makes the calculation of gas-phase temperature gradient and heat conduction simple and reasonable, which is also one of the successful factors of this simulation study .