液体爆炸抛撒初期液环运动、破碎的数值研究

A numerical study on liquid ring motion and fragmentation for the initial process of liquid explosive dispersal

本文对FAE技术液体燃料抛撒过程中爆轰产物气体膨胀、液环轴对称径向扩展运动及液环破碎进行分析,建立相应的物理数学模型,并将各模型耦合起来,完成了爆炸力驱动下液环径向扩展、破碎过程的数值模拟。研究结果表明,建立的物理数学模型是可行的,而且该问题的研究为液体的二次破碎及气液混合物形成过程的数值研究提供了初始条件。

For the explosive dispersal on liquid fuel of FAE technique, the expansion of gaseous detonation products, axisymmetric radial extension and fragmentation of a liquid ring were analyzed, then corresponding models were established. By those models coupled, the numerical simulation on motion and fragmentation of the liquid ring exerted by strong action was carried out. The results computed show that the models established are feasible, and present study can offer initial conditions for the numerical simulation on the process of liquid secondary breakup and gas-liquid mixing.