【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10~30 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。更多还原

【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.更多还原