子母弹分离过程的数值模拟方法  

The numerical simulation of submution separation processes from dispenser

作　　者：张玉东[1] 纪楚群[1] 

机构地区：[1]北京空气动力研究所,北京100074

出　　处：《空气动力学学报》2003年第1期47-52,共6页Acta Aerodynamica Sinica

基　　金：国家计算流体力学重点实验室基金资助项目(项目号:2000-14).

摘　　要：以分区拼接网格数值模拟方法为基础,通过气动方程和弹道方程联立求解数值模拟了子弹从母弹中分离并穿越母弹激波的过程,研究了子母弹干扰流场的气动特性,分析研究了子弹各初始分离状态(如初始抛撒速度、初始姿态角、初始姿态角速度等)对分离过程的影响。The aerodynamic interference between dispenser and submunitions is one of the im portant problems during the development of dispenser/submunition weapon system. The submunition initial movement parameters (initial velocity of separation,ini tial nominal angle of attack,initial velocity of nominal angle of attack) are i mportant for submunition separation processes from dispenser safety and accurate ly. In this paper, the numerical method is employed to study the aerodynamic int erference among dispenser and submunitions, and to the processes of submunition separation from dispenser. It is introduced that the result of simulations of th e processes of submunition separation from dispenser, includes the different eff ects of initial movement parameters (initial velocity of separation, initial nom inal angle of attack, initial velocity of nominal angle of attack).

关 键 词：迸接网格 数值模拟 子母弹分离 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程] O354.5[理学—流体力学]