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弹道学报  2014 

大口径平衡炮内弹道一维两相流建模与仿真

Keywords: 平衡炮,内弹道,两相流,数值仿真

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Abstract:

针对大口径平衡炮长管状药、模块化装药的特点,提出了将气固两相分别计算而非将固相流体化的建模思想,建立了适用于平衡炮的内弹道一维两相流模型。模型将管状药床看成一个在两端面压力差和相间阻力共同作用下可沿轴向运动的整体,相间质量能量输运通过控制方程中的源项实现。应用新模型与重叠网格技术对320mm平衡炮内弹道过程进行仿真计算,通过计算结果与炮射试验结果的对比分析,验证了模型的可行性,为平衡炮内弹道过程研究提供了新思路。

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