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升华能随温度和压力的变化及其对汽化反冲冲量的影响

DOI: 10.11858/gywlxb.2007.04.002, PP. 342-346

Keywords: 升华能,汽化反冲,冲量,脉冲X射线

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Abstract:

从普适的热力学原理出发,研究了升华能随温度和压力的变化。结果表明,升华能随温度或压力的增加而线性减小。采用光滑粒子流体动力学方法对金属铝在脉冲X射线辐照下的汽化反冲冲量进行了数值模拟,考察了升华能的变化对冲量的影响。结果表明,考虑升华能随温度和压力的变化后,冲量明显增加。

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