雷诺数随高度的变化对远程弹箭射程的影响  

The Effect on range of Long-range Shells and Rockets by the Variation of Reynolds Number with Altitude

作　　者：朱志军[1] 潘书山[1] 

机构地区：[1]国营772厂军代室,江苏南京210016

出　　处：《火力与指挥控制》2009年第5期111-114,共4页Fire Control & Command Control

摘　　要：研究了雷诺数在0 km^80 km高度范围内随高度的变化,计算分析了由于雷诺数随高度的变化而引起的阻力系数的变化,然后,以某型远程火箭为对象对弹道进行了对比计算。计算结果表明,雷诺数随着高度的增加下降明显,阻力系数随着高度的增加而变大,雷诺数随高度的变化对射程的影响较大。研究结果说明,对于远射程大弹道高的弹箭飞行,雷诺数随高度的变化不容忽视。The variation of reynolds number with altitude of 0km-80km is studied, the variation of drag coefficients with reynolds number is calculated and analyzed, Moreover, the ballistic calculating of a long balance range rocket is made. The results show that the decrease of reynolds number reach more than 60 percent and the increase of drag coefficients reach more than 15 percent with the increase of 10000m,the range obtained by the calculating considering the variation of reynolds number is obviously nearer than that not considering the variation of reynolds number. The results of the study are helpful to the ballistic calculating and standardization of test range etc.

关 键 词：雷诺数 远程弹箭 高空弹道 

分 类 号：TJ761.3[兵器科学与技术—武器系统与运用工程]