串式装药两相流模型及数值求解  

Two-Phase Flow Model and Numerical Solution for Serial Propellant Charge

作　　者：张江波[1] 余斌[1] 张玉成[1] 李强[1] 严文荣[1] 闫光虎[1] 贾永杰[1] 

机构地区：[1]西安近代化学研究所,西安710065

出　　处：《兵工自动化》2011年第5期64-67,共4页Ordnance Industry Automation

摘　　要：为改善串式装药的内弹道性能,对超高射频弹幕武器的核心技术串式装药进行研究。根据内弹道学及两相流相关基础知识,通过合理假设建立了串式装药的准两相流内弹道数学物理模型,给出计算方法,并采用MATLAB编写了计算程序,以30 mm口径武器为基础进行了数值求解,对求解结果给出了较好的三维图例,反映了发射药的燃烧规律及弹丸的运动过程。从理论上对侧药室密封和不密封进行了计算。结果表明,在最大压力保持基本不变的情况下初速由未密封时的588.4 m/s提高到密封后的626.3 m/s,初速提高了6.4%,对侧药室密封能够在一定程度上改善串式装药的内弹道性能。Research on key technology of the serial propellant charge has been done for the super high firing-rate barrage weapon in order to improve its interior ballistic performance.A quasi-two-phase flow interior ballistic model of mathematics and physics is established based on basic knowledge of interior ballistics and two-phase flow through reasonable hypothesis.A computing method is gained and a computing program is written by using MATLAB.Numerical solution is done on the basis of 30 mm caliber weapons and a better three-dimensional illustration on computing results is gained,the burning rules of gun propellant and process of projectile movement are reflected on the illustration.A calculation for the sealing and unsealing of side chamber is carried out theoretically.The results show that the muzzle velocity is raised from 588.4 m/s（unsealing） to 626.3 m/s（sealing） under the condition in keeping the maximum pressure basically unchanged.It means the sealing of side chamber could improve interior ballistic performance of the serial propellant charge in some extent.

关 键 词：发射药 内弹道 两相流 串式装药 炮口初速 

分 类 号：TJ410.52[兵器科学与技术—火炮、自动武器与弹药工程]