一种与爆轰参数封闭的JWL方程参数确定方法  

One parameter-obtained method for JWL equation of state considered detonation parameters

作　　者：南宇翔[1] 蒋建伟[1] 王树有[1] 门建兵[1] 

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《爆炸与冲击》2015年第2期157-163,共7页Explosion and Shock Waves

基　　金：国家自然科学基金项目(11032002);国家重点基础研究发展计划(973计划)(2010CB832706);爆炸科学与技术国家重点实验室基金项目(ZDKT-1102)

摘　　要：利用数值模拟和理论计算分析了炸药JWL状态方程参数与爆轰参数封闭的重要性;获得了利用圆筒实验测试结果计算炸药爆轰产物绝热等熵指数和爆压的方法;建立了与爆轰参数封闭的JWL状态方程参数的确定方法,并依据公布的圆筒实验数据,应用于两种典型炸药JWL状态方程参数的确定,获得的参数与炸药爆轰参数严格封闭,数值模拟结果与实验结果一致性好,表明炸药JWL参数确定方法合理可靠。In this paper, the method of obtaining parameters for JWL equation of state is investigated. The importance of JWL parameters considered detonation parameters is analyzed using simulation and theoretical calculation. Isentropic adiabatic index and detonation pressure of detonation product are calculated according to cylinder test. The methodology process for obtaining JWL parameters of ideal detonation product considered detonation parameters is established. The JWL parameters of two typi- cal explosive are obtained with the application of this method according to published cylinder experi- mental result. The results of numerical simulation agree with the cylinder test so that the JWL pa- rameters are reasonable and reliable.

关 键 词：爆炸力学 参数确定 约束守恒 JWL状态方程 圆筒实验 

分 类 号：O389[理学—流体力学] TJ45[理学—力学]