-
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。
-
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. -
Sun C W, Wei Y Z, Zhou Z K. Applied Detonation Physics [M]. Beijing: National Defence Industry Press, 2000: 488-493. (in Chinese) 孙承纬, 卫玉文, 周之奎. 应用爆轰物理 [M]. 北京: 国防工业出版社, 2000: 488-493. Bdzil J B, Stewart D S. Modeling Two-Dimensional Detonation with Detonation Shock Dynamics [J]. Phys Fluids A, 1989, 1(7): 1261-1267. Bdzil J B, Fickett W. Detonation Shock Dynamics: A New Approach to Modeling Multi-Dimensional Detonation Waves [A]//Proceedings of Ninth Symposium (International) on detonation [C]. Oregon: Office of Naval Research, 1989: 730-742. Lambourn B D, Swift D C. Application of Whitham's Shock Dynamics Theory to the Propagation of Divergen Detonation Waves [A]//Proceedings of Ninth Symposium (International) on Detonation [C]. Oregon: Office of Naval Research, 1989: 784-797. [5] Lambert D E. Experimental Validation of Detonation Shock Dynamics in Condensed Explosives [J]. Journal of Fluid Mechanics, 2006, 546: 227-253. Aslam T D. Detonation Shock Dynamics Calibration of PBX 9501 [A]//Shock Compression of Condensed Matter [C]. Hawaii: American Institute of Physics, 2007: 813-816. Sun C W, Zhao F, Gao W. A Detonation Shock Dynamics Approach to the Diameter Effect of Explosive Sticks [J]. Explosion and Shock Waves, 1996, 16(3): 193-201. (in Chinese) 孙承纬, 赵峰, 高文. 研究爆速直径效应的爆轰冲击动力学方法 [J]. 爆炸与冲击, 1996, 16(3): 193-201. Tan D W, Fang Q, Zhang G S, et al. Experimental Study on the Diameter Effect for JB-9014 Rate Sticks [J]. Explosion and Shock Waves, 2003, 23(4): 300-304. (in Chinese) 谭多望, 方青, 张光升, 等. 钝感炸药直径效应实验研究 [J]. 爆炸与冲击, 2003, 23(4): 300-304. Aslam T D, Bdzil J B, Hill L G. Analysis of the LANL Detonation-Confinement Test [A]//Shock Compression of Condensed Matter [C]. Oregon: American Institute of Physics, 2003: 831-834. Bdzil J B, Davis W C. Detonation Shock Dynamics(DSD) Calibration for PBX 9502 [A]//Proceeding of Tenth Symposium (International) on Detonation [C]. Boston: Office of Naval Research, 1993: 146-149. Collyer A M, Dunnett J D, Swift D C, et al. WBL Detonation Wave Propagation for EDC35 and EDC37 [A]//Proceeding of Eleventh Symposium (International) on Detonation [C]. Colorado: Office of Naval Research, 1997: 12-20. Bdzil J B, Stewart D S. Time-Dependent Two-Dimensional Detonation: The Interaction of Edge Rarefactions with Finite-Length Reaction Zones [J]. Journal of Fluid Mechanics, 1986, 171(1): 1-26. David L K. Multi-Valued Normal Shock Velocity versus Curvature Relationships for Highly Non-Ideal Explosives [A]//Proceeding of Eleventh Symposium (International) on Detonation [C]. Colorado: Office of Naval Research, 1997: 181-192. Hill L G, Bdzil J B, Aslam T D. Front Curvature Rate Stick Measurements and Detonation Shock Dynamics Calibration for PBX 9502 over a Wide Temperature Range [A]//Proceeding of Eleventh Symposium (International) on Detonation [C]. Colorado: Office of Naval Research, 1997: 1029-1037. Zhang W S. Finite Difference Methods for Partial Differential Equations in Science Computation [M]. Beijing: Higher Education Press, 2008: 246-251. (in Chinese) 张文生. 科学计算中的偏微分方程有限差分法 [M]. 北京: 高等教育出版社, 2008: 246-251. Zhou M, Sun S D. Genetic Algorithms: Theory and Applications [M]. Beijing: National Defence Industry Press, 1999: 18-31. (in Chinese) 周明, 孙树栋. 遗传算法原理及应用 [M]. 北京: 国防工业出版社, 1999: 18-31. Campell A W. Diameter Effect and Failure Diameter of a TATB-Based Explosive [J]. Propellants, Explosive, Pyrotechnics, 1984, 9: 183-187. Hill L G, Aslam T D. The LANL Detonation-Confinement Test: Prototype Development and Sample Results [A]//Shock Compression of Condensed Matter [C]. Oregon: American Institute of Physics, 2003: 847-850.
点击查看大图
计量
- 文章访问数: 14285
- HTML全文浏览量: 832
- PDF下载量: 1187