为了更加深入地了解2种拉瓦尔喷管减后坐结构的动力学特性，对2种利用拉瓦尔喷管减后坐的结构分别建立了双一维两相流模型，以5.8 mm口径实验枪为研究对象进行数值模拟计算，对数值仿真结果进行了对比分析.结果表明，喷管后置式减后坐结构在保持弹丸出膛口速度的同时能够提供更大的减后坐效率，减后坐效能明显优于喷管前置式减后坐结构.
Abstract
In order to understand dynamic characteristics of two recoilless structures with Laval nozzles, the double one dimension two phase flow interior ballistic models were developed according to two recoilless structures with Laval nozzles. Taking 5.8 mm test guns as research object, numerical simulation was carried out. The numerical simulation results were compared. The results show that the front nozzle structure is capable of providing greater efficiency by reducing recoil impulse and maintaining velocity, and the performance of reducing recoil impulse is superior to the rear nozzle structure.
关键词
拉瓦尔喷管 /
两相流 /
减后坐 /
效率
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Key words
Laval nozzle /
two phase flow /
reducing recoil /
efficiency
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参考文献
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脚注
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