为提高射流在大炸高下的侵彻能力,结合某型破甲战斗部的改进,通过试验研究了射流在大炸高下的断裂及速度分布,结果表明,大炸高下射流的断裂过程及速度分布是不连续的,高速段颗粒速度呈非线性分布,前后颗粒间速度差为1478.1m/s;低速段呈线性分布,前后颗粒间速度差为124m/s。射流的侵彻能力主要取决于高速段,到达靶板表面时的速度不低于5000m/s。

To improve penetration ability of jet at large burst height, combined with improvement of some armor penetration war-head, the rapture and velocity distribution of the jet at large burst height were studied through experiments. The result indicates that the rapture and velocity distribution of the jet at large burst height are not continuous, the velocity of jet head is not linear, with the cap of velocity between frontal particle and latter is 1478.1m/s;The velocity of jet latter is linear; with the cap of velocity between particles are 124m/s. The armor penetration ability of the jet is controlled by its height velocity head and the jet velocity when arriving target is not less than 5000m/s.