高超声速飞行器碳基头锥烧蚀外形计算

高超声速飞行器头锥部位的烧蚀外形会影响飞行器的升阻比和飞行器的稳定性，烧蚀外形的准确评估对于长时间滑翔式飞行器的综合设计具有重要意义。本文介绍了头锥烧蚀外形计算方法，基于该方法对飞行器头锥烧蚀外形进行了仿真研究，某飞行器头锥烧蚀的仿真结果与试验结果吻合良好。对比了飞行器进行俯仰运动和滚转运动时的烧蚀外形，总结了烧蚀外形随飞行状态变化的演变规律，俯仰运动影响头锥迎风面和背风面的烧蚀量，滚转运动影响头锥烧蚀位置。

Hypersonic aircraft's carbon-based nose ablation shape calculation

Nose ablation shape influences the lift-drag ratio and the stability of a hypersonic aircraft. For the integrated design of long-time gliding aircraft, it is of great significance to evaluate the ablation shape of the nose-tips accurately. The calculation method of nose ablation shape is introduced. Simulation research of hypersonic aircraft's ablation shape is conducted based on this method. The simulation and experimental results of an aircraft nose ablation are in good agreement with each other. The ablation shapes during pitching and rolling motion are compared. Estimation of ablation shapes with flight status has been studied thoroughly. Pitching motion affects the ablation thickness on windward and leeward side, and roll motion affects the ablation position.