| 膨胀波火炮两相流内弹道性能分析与数值模拟 |
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| 引用本文： | 王颖泽,张小兵.膨胀波火炮两相流内弹道性能分析与数值模拟[J].兵工学报,2010,31(2):154-159. |
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| 作者姓名： | 王颖泽 张小兵 |
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| 作者单位： | 南京理工大学,动力工程学院,江苏,南京,210094;南京理工大学,动力工程学院,江苏,南京,210094 |
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| 基金项目： | 教育部优秀人才支持计划项目(NCET040509);;高校博士学科点基金项目(20060288019);;江苏省自然科学基金项目(BK2007531) |
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| 摘 要： | 根据膨胀波火炮(RAVEN)系统的发射机理及结构特点,采用两相流理论,建立发射过程中计及膛内气固两相相间作用及后喷装置动态打开过程的两相流内弹道模型,给出了相应的数值求解方法。通过对RAVEN内弹道过程的求解分析与实验比对,得到了发射过程中,膛内火药燃烧及燃气流动状态的变化规律,给出了后喷装置引入所产生的有别于传统闭膛火炮系统的膛内流动现象,验证了RAVEN内弹道两相流模型的正确性。通过数值求解计算可得到:1)RAVEN系统在不影响炮口动能的前提下后坐冲量减小53.04%,身管热量降低50.42%;2)后喷打开时机越早,减小系统后坐,降低身管热量的能力越强;3)喷管截面参数的变化对减小系统后坐、降低身管热量能力的影响很小。
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| 关 键 词： | 流体力学 两相流 内弹道 发射机理 数值模拟 膨胀波火炮 |
Two-phase Flow Property Analysis and Numerical Simulation of Interior Ballistics for Rarefaction Wave Gun |
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| WANG Ying-ze,ZHANG Xiao-bing.Two-phase Flow Property Analysis and Numerical Simulation of Interior Ballistics for Rarefaction Wave Gun[J].Acta Armamentarii,2010,31(2):154-159. |
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| Authors: | WANG Ying-ze ZHANG Xiao-bing |
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| Affiliation: | (College of Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu，China) |
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| Abstract: | Based on launch mechanism and structure characteristic of the rarefaction wave gun(RAVEN) system,the two-phase flows model of interior ballistics considering gas-solid interphase effect and dynamic opening of the back-blow equipment in the launch process was established,and numerical method of the model was also given.By the numerical analysis of the RAVEN interior ballistic process,the laws about combustion and flow of powder and the change of flow phenomena caused by back-blow equipment were obtained,and ... |
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| Keywords: | fluid mechanics two-phase flow interior ballistics launch mechanism numerical simulation rarefaction wave gun |
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