论文部分内容阅读
大口径火炮模块发射装药通常由多个模块组成，流场结构复杂。该文对燃烧场进行分区模化，并在此基础上给出两相流内弹道理论模型和计算步骤，编制程序对短管试验炮膛内发射过程进行了数值模拟。结果表明，膛内的压力、压差及弹丸速度等参量的理论计算结果与实验吻合得较好，模拟结果有较高的置信度。该模型和计算程序可用于模块装药结构火炮内弹道模拟、装药设计和安全性能分析
Large-caliber artillery module launch charge is usually composed of multiple modules, the flow field structure is complicated. In this paper, the combustion field is partitioned and modeled, and on this basis, the theoretical model of two-phase flow trajectory and calculation steps are given. The programming procedure is used to simulate the launching process in the short bore tube chamber. The results show that the theoretical calculation results of the pressure, differential pressure and projectile velocity in the bore agree well with the experimental results, and the simulation results have higher confidence. The model and calculation program can be used in the module charge structure of artillery interior ballistic simulation, charge design and safety performance analysis