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Fast cook-off modeling of HMX

机译：HMX的快速烹制模型

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The transient behavior of confined HMX in response to an external heat flux has been simulated using a detailed kinetic model. The model is spatially one-dimensional, fully transient, and consists of equations for modeling the solid (condensed) phase HMX, the gas phase, and the surrounding container for fast cook-off conditions. The condensed-phase decomposition reactions are described by semi-global, distributed kinetics. The gas phase description includes a detailed chemistry model for the combustion of HMX. A nonlinear, numerical solution of the partial differential equations results in predictions of temperature, pressure, velocity, and species fractions as a function of position and time. Predicted time-to-ignition yields good agreement with experimentally measured fast cook-off times. Temperature at ignition is found to be a function of heating rate. The ignition process for fast cook-off is consistent with laser ignition of bare HMX samples. Simulation results depend on accurate boundary conditions applied to the steel container. Pressurization rates are calculated and insight is given into the fast cook-off behavior of HMX. The main decomposition pathway is the conversion of HMX into CH2O and N2O. Published by Elsevier Inc. on behalf of The Combustion Institute.
机译：已使用详细的动力学模型模拟了受限HMX响应外部热通量的瞬态行为。该模型在空间上是一维的，完全瞬态的，并且由用于快速蒸煮条件下的固相（冷凝）相HMX，气相和周围容器建模的方程式组成。凝聚相分解反应由半全局分布动力学描述。气相描述包括用于HMX燃烧的详细化学模型。偏微分方程的非线性数值解可根据位置和时间预测温度，压力，速度和物种分数。预计的点火时间与实验测得的快速蒸煮时间相吻合。发现点燃时的温度是加热速率的函数。快速蒸煮的点火过程与裸HMX样品的激光点火一致。仿真结果取决于应用于钢容器的准确边界条件。计算增压速率，并深入了解HMX的快速蒸煮行为。主要的分解途径是HMX转化为CH2O和N2O。由Elsevier Inc.代表燃烧研究所出版。

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