弹丸阻力曲线随高度变化的计算研究

Calculation Study of Projectile Drag Curve Versus Altitude

当弹丸的飞行高度在0-3000米之间变化时,弹丸的阻力曲线不再仅仅只依赖于弹形参数和马赫数,而应当随高度变化而有所变化.本文研究了雷诺数随高度的变化,计算了阻力曲线随高度的变化,并编制了相应的计算程序.

When a projetile flies at the altitude between 0 and 30000 meters.The dragcurve of the projectile depends not only on projectile shape and Mach number,but alsoon the flying altitude.This paper studies the variation of Re number with altitude andcalculates the variation of drag curve versus altitude.The corresponding calculatingprogram is presented.