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首页> 外文会议>Seminar on New Trends in Research of Energetic Materials;NTREM '10 >Analysis of heat transfer in explosives
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Analysis of heat transfer in explosives

机译：爆炸物传热分析

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The heat transfer in explosives can be described by Fourier equation with the additional term for the heat generated by decomposition of the explosive. This equation can be solved numerically. E.g. an ignition temperature during a slow cookoff test can be calculated if is the explosive properly characterized. The density, thermal conductivity and heat capacity, together with the description of decomposition reaction kinetics (heat of reaction, activa-tion energy, preexponential factor and reaction model) are to be known to characterize the material. However an importance of these individual parameters on the solution has not been published in a self-contained form.The influence of the individual material properties on the solution is studied. As a stan-dard, a simulation of the slow cookoff test of Semtex 1A using one dimensional finite dif-ference method was used. The results of the simulation corresponds to experimental data. The material parameters were varied and the influence of these variation on the calculated ignition temperature is evaluated and discussed.
机译：炸药中的热传递可以通过傅立叶方程来描述，并附有炸药分解产生的热量的附加项。该方程可以数值求解。例如。如果爆炸物具有适当的特征，则可以计算出慢蒸煮测试期间的着火温度。已知密度，热导率和热容量以及分解反应动力学（反应热，活化能，预指数因子和反应模型）的描述可表征该材料。但是，这些单独参数在解决方案上的重要性尚未以独立的形式公开。 研究了各个材料特性对溶液的影响。作为标准，使用一维有限差分法模拟Semtex 1A的慢煮试验。仿真结果与实验数据相对应。改变材料参数，并评估和讨论这些变化对计算出的点火温度的影响。

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