有迎角旋转钝锥的烧蚀滞后滚转力矩的算法  

Calculation of roll torque in effect of ablation lag for spinning blunted cone at angles of attack

作　　者：徐书轩[1] 方一川[1] 

机构地区：[1]中国科学技术大学力学和机械工程系,合肥230026

出　　处：《宇航学报》2002年第1期8-11,共4页Journal of Astronautics

摘　　要：有迎角的再入旋转钝锥由于周向烧蚀滞后将产生滚转力矩。在烧蚀滞后滚转力矩的计算方法中 ,本文主要介绍滞后引射率和粗糙度对壁面摩擦系数联合影响的一种快速计算方法。给出计算结果与实验数据的比较 ,分析烧蚀滞后滚转力矩的模数随飞行参数的变化。Roll torque is produced due to the effects of circumferential ablation lag for a spinning re entry blunt nosed cone at angles of attack .In the calculations of roll torque of ablation lag,a rapid method for calculating combined influence of ablation injection and roughness on skin friction coefficient is mainly described.Comparisons between calculated results and experimental data are presented,the variations of module of the roll toque coefficients with flight parameters are analyzed.

关 键 词：烧蚀滞后 横滚力矩 算法 再入旋转钝锥 滞后引射率 

分 类 号：V411[航空宇航科学与技术—航空宇航推进理论与工程]