超声速底凹弹侧壁开孔对飞行阻力的影响

提出了一个底凹弹在超声速条件下侧壁开孔减小底阻的数学力学模型。模型经计算结果表明与以往的实验结果相吻合，可作为探索底凹弹侧壁开孔减阻效应工程计算的基础。

The Effect About Projectiles of Base Cavity with Side Holes to Flight Drag Under Supersonic Flow

A mechanical model about a projectile with base cavity and side holes,which could reduce the base drag in supersonic speed,has been put forward in this paper. Since the comparison betxtreen calculations and experimental results is in good agreement, the model could be taken as a basis to study the drag reducing effect of side holes and to make an engineering prediction.