The Study Of Ablation Regulation For Hypersonic Projectile And Its Influence To Ballistic Characteristic

This dissertation researches ablation phenomena of hypersonic projectile. Firstly, the complete research is acted to its ablation phenomenon and ablation mechanism. Based on researchful results of two former students, we take the influences of thermochemistry reaction, mutual disturb and unsymmetrical instance into account. Secondly, the paper simulates the transient thermal response of projectile according to the simulation software, and discuss the ablation regulation when the projectile is in different initial velocity, in different shape, in different angle of attack condition and in different material condition. Thirdly, the effect on the aerodynamic characteristic and the outer ballistic characteristic after the ablation of hypersonic projectile has been analyzed. At last, we empolder the ballistic simulative software of hypersonic projectile, which is an optical system based on OpenGL and can help us study, analyze deeply ablated rule and ballistic characteristic of hypersonic projectile. It also can be used to utilize terrain-wander and virtual shooting range to simulate the whole flight process.