大长径比杆条在空气中飞行情况的数值模拟研究  

Numerical Simulation of Big Length-to-Diameter Ratio Rods Flight in the Air

作　　者：吕红超[1] 张新伟[1] 张红军[1] 翟红旗[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《航空兵器》2007年第1期44-46,50,共4页Aero Weaponry

摘　　要：利用典型的流—固耦合算法,对大长径比(L/D≥30)杆条在空气中飞行的情况进行三维数值模拟研究,计算了不同尺寸杆条的速度衰减系数和等效应力分布,并将数值模拟结果与试验结果进行了比较,为离散杆式战斗部设计和研究提供参考。The typical fluid-solid interaction analysis is used, the instance of big length-to-diameter ratio rods flight in the air is studied by 3-D numerical simulation, the attenuation coefficient of velocity and the distribution of equivalent stress is calculated for the rods with different dimensions. The results of numerical simulation is compared with those of experiment for reference of the other kinds of discrete rod warheads.

关 键 词：大长径比 杆条 流-固耦合 速度衰减系数 等效应力 

分 类 号：TJ760.3[兵器科学与技术—武器系统与运用工程]