The simulation of static dispersing for cluster munition with center tube

In order to do the research on the movement law of submunition during the process of the cluster munition static dispersing, this paper takes a certain cluster munition as the research object, and describes the static dispersing process in detail according to the physical model used in simulation experiment. Based on reasonable assumption, using the combustion model and gas state equation of dispersing gunpowder, the motion equation of submunition, and the energy-conservation equation of dispersing system, the interior ballistic mathematical model of the submunition static dispersing can be established. With the simulation model and Arbitrary Lagrange-Euler (ALE) algorithm, the change laws of acceleration, velocity and displacement of the submunition are obtained by the numerical simulation on the process of static dispersing. Experimental results are shown basically the same as the simulation results.