高速弹丸曲线形头部波阻估算

An Evaluation of Wave Drag of the Curved Projectile Nose at High Speed

本文分析了高速弹丸曲线形头部波阻系数C_xn与几何参数及来流马赫数M_∞的关系,通过理论分析计算,得到了诸几何数与M∞数下的波阻系数C_xn,并通过最小二乘法进行曲线拟合,得到了一个简单的波阻估算式.

This article analyses the relation of wave drag coefficient C_(xm) of the curvedprojectile nose at high speed with geometric parameters and Mach number M_∞ of freestream.Through theoretical analysis and calculation,the wave drag coefficient functionwith respect to various geometric parameters and Mach number M_∞ are obtained.Furthermore,a simple evaluation equation is given by means of the least square method.