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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。
As ballistic missile defense systems detect, track, and intercept missiles in the mid-range of ballistic missiles, the research on mid-range warheads has become more and more important. Aiming at the breakthrough of infrared shielding with solid particles, a mathematical model of jetting process of solid particles carrying gas was established. The transient concentration of gas and solid particles in the space around the bullet during the jetting process was obtained by numerical solution Distribution, calculated its infrared shielding effect. The results show that the solid particles can form a relatively stable infrared shielding layer after being ejected from the nozzle under the action of gas, effectively reducing the infrared radiation brightness of the ballistic missile in the middle of the ballistic missile. Therefore, Precautionary measures are effective.