超高声速穿甲弹气动烧蚀的研究

THE STUDY ON AERODYNAMIC ABLATION OF HYPERSONIC ARMOUR-PIERCING PROJECTILE

引用超高声速飞行弹丸的 6 D外弹道模型 ,结合弹头部和弹翼前缘的烧蚀计算模型 ,通过耦合计算外弹道模型和烧蚀模型 ,得出只要弹丸在起始一段时间内能够经受一定的气动加热 ,那么 ,在剩余的飞行时间里 ,它将不再发生烧蚀 。

The 6D trajectory model of hypersonic projectile is cited in the paper, and the ablation model of projectile nose and projectile wing is derived. On the basis of coupling calculation for outer trajectory model and ablation model, the paper has some helpful conclusion, that is, the projectile will not ablate as long as it can endure enough aerodynamic heating for initial moment. The theory, method and results presented in the paper are available for the design of hypersonic projectiles in the future.