有攻角高超声速穿甲弹气动烧蚀的研究

该文采用“轴对称比拟”的研究方法，运用相似性理论，基于小横向流假设，研究了有攻角高超声速穿甲弹的气动烧蚀。通过耦合计算物面流线几何形状、比例因子、气动加热烧蚀模型，结果表明弹丸头部出现了严重的不对称变形，这将引起弹丸气动力的较大变化，可能导致弹丸飞行稳定性和密集度的降低，对今后进行高超声速穿甲弹的设计有重要的促进作用。

The Aerodynamic Ablation of Hypersonic Penetrator Shell at Angle of Attack

The aerodynamic ablation of hypersonic penetrator shell at angle of attack is studied by using the axisymmetric analog method, making use of comparability theory and basing on small cross flow hypothesis. The streamline geometry, the scale factor, aerodynamic heat and ablation model are couplingly calculated. The results show that the projectile nose comes forth serious asymmetry. This brings distinct change of projectile aerodynamic force and may reduce projectile flight stability and dispersion. These are important stimulative function for the design of hypersonic penetrator shell in the future.