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摘要: 爆轰冲击波动力学(DSD)是目前研究爆轰波非理想传播的有效途径。利用爆轰冲击波动力学的广义几何光学模型,研究了大长径比药柱中爆轰波非理想传播现象,根据常温下Ф10~30 mm药柱的直径效应实验数据,通过非线性优化方法遗传算法,确定了一套JB-9014钝感炸药的DSD参数。这套DSD参数对JB-9014药柱中定态波形和爆速的计算与实验结果符合。
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关键词:
- 爆炸力学 /
- 钝感炸药 /
- 爆轰冲击波动力学方法 /
- 定态爆速
Abstract: Detonation shock dynamics (DSD) is an approximation to the reactive Euler equations that allows numerically efficient tracking of curved detonation waves. The DSD parameters are the velocity curvature relation and the boundary angle. A computer code was developed to facilitate the calibration of these parameters for JB-9014 insensitive high explosive using the generalized optics model of DSD. Calibration data were obtained from measurements of the detonation velocities and fronts in JB-9014 rate sticks at ambient temperature, with diameters of 10~30 mm. The steady state detonation velocities and fronts predicted by these DSD parameters are in very good agreement with experiment. -
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