Numerical Simulation On Cluster Munition Dispersing And Study On Underwater Dispersion Law Of Submunition

In the process of developing underwater interception cluster-based weapon system, it is vital to calculate and simulate the dispersing process by software and make a research on water dispersion law of submunition. The paper studies of cluster munitions and dispersing submunition, analyzes the process of dispersing and moving in flight and water, furthermore, the rule of underwater dispersion and blockade space dynamic change are studied.Firstly, the piston model dispersing process of double firebox interior ballistic is researched. The interior ballistics physical and numerical models of this system are established. On base of that, the numerical simulation is given. The main interior ballistic data and performance curves are obtained. Secondly, the dispersing process of external trajectory is researched. Oriented tube, rotating carrier round and assembly angle of submunition are analyzed in submunition initial external trajectory interface model. Three degrees of freedom particle trajectory models in flight and underwater are established. Then, the numerical simulation of external trajectory is given. Finally, underwater dispersion law of submunition is researched. By comprehensive analyzing and comparing of the various factors which influence the dispersion, a group of more reasonable parameters are selected to study the rule of underwater dispersion and blockade space dynamic change. The results provide the theoretical foundation and analysis method for the further research on this weapon.