【摘要】 随着弹道导弹防御系统对弹道导弹中段弹头的发现、识别跟踪和拦截能力的不断提高,针对中段弹头突防措施的研究越来越重要。针对采用固体微粒进行红外遮蔽这种突防措施进行了探索,建立了气体携带固体微粒的喷射过程数学模型,利用数值求解方法得出了喷射过程中气体及固体颗粒在弹头周围空间的瞬态浓度分布,计算了其红外遮蔽效果。研究结果表明:固体颗粒在气体作用下从喷口喷出后,可以形成相对稳定的红外遮挡层,有效地降低了弹道导弹中段弹头的红外辐射亮度,因此,采用气体携带固体微粒进行红外遮蔽的突防措施是有效的。更多还原

【Abstract】 With the improvement of missile defense system to detect,identify,track and intercept the ballistic missile warhead in the mid-course,the study of penetration method for the warhead in the mid-course is more and more important.The infrared shield with solid particles for missile to penetrate the defense system was explored.The ejecting model of solid particles with the action of gas was established and the transient concentration distributions of the gas and solid particles around the missile warhead in the mid-course were obtained respectively.The effect of infrared shield was investigated.The results show that the relatively steady infrared shield layer can be formed when solid particles eject from the spout with the action of gas,and the infrared radiation brightness of ballistic missile warhead in the mid-course is reduced effectively,so the infrared shield penetration method of solid particles with the action of gas is effective.更多还原