Modeling And Simulation Of Hypervelocity Launching's Interior Ballistics Process With Lateral Injection For Energy Compensation Technology

Hypervelocity launching shows attractive prospect in the development of weapon system and ground high speed impacts experiments, and lateral injection for energy compensation is one of them. On the basis of mature propellant technology, the conventional gun is rebuilt with a lateral chamber for energy compensation, as a result, the propeller's velocity can be improved, and the Hypervelocity launching can be achieved. In this essay, numerical simulation has been used to describe the interior process, and program is done to simulate and analyze the interior ballistics, the simulation is valuable to the research next. The principle contents are as follows:a) For the conventional gun, double one-dimensional two-phase-flow model which coupled central ignition tube with the chamber is established. The program is written using Mac-Cormack scheme, and the flow field of the chamber is analyzed.b) The physical model of gun with lateral chamber for energy compensation has been established and the propulsion theory is analyzed. The classical interior ballistics model is established and calculated. The simulation results for the conventional gun and the gun with lateral chamber for energy compensation are comparedc) The two-phase-flow model of the hypervelocity launching's interior ballistics process is built, Different program is written by the one-dimensional model and double one-dimensional model separately, The flow field and the performance of the lateral chamber for energy compensation technology are analyzed.d) The position, structure and loading parameters are analyzed to research the effects to the performance of the interior ballistics, and the parameters are designed to realize the hypervelocity launching and the optimization of the interior performance.