再生式液体炮内弹道特性的数值预测
关键词 液体发射药火炮 内弹道模型 液滴燃烧 数值模拟
毕业论文设计说明书外文摘要
Title The numerical prediction of interior ballistic characteristic of Regenerative Liquid Propellant Gun
Abstract
According to the interior ballistic characteristics of RLPG，the zero dimensional model interior ballistic is established, and by using Visual Basic 6.0 to compile corresponding numerical simulation software, the software has good numerical simulation ability, simple interface and convenient operation.According to the 23mm RLPG parameters,it turned out that the theoretically calculated muzzle velocity compared through the experimental date is 1.38%;the theoretically calculated the maximum pressure of reservoir and combustion chamber compared through the experimental date is 2.76% and 5.11%,calculated value and experimental value compares good,calculation model is reasonable,the curve simulates the pressure of combustion and reservoir chamber change rule.On the basis of the above work,the numerical prediction around the parameters such as spray hole area,hole length,the quality of piston,the quality of projectile change is done.The research results has a certain reference value to guide RLPG interior ballistic design.
Keywords RLPG interior ballistic model droplet burning numerical prediction
目 次
1 绪论2
1.1 课题背景与意义2
1.2 国内外研究现状5
1.3 本课题主要工作7
2 再生式液体炮内弹道模型 8
2.1 物理模型 8
2.2 数学模型 9
3 计算方法与程序设计 14
3.1 引言14
3.2 计算方法14
3.3 软件总体设计15
3.4软件主要功能18
3.5 界面设计18
4 数值模拟24
4.1 结构参数与装填诸元24
4.2 计算结果比较24
4.3 多参数变化对RLPG内弹道性能的影响26
结论 31
致谢 32
参考文献33
主要符号表
名称 符号 名称 符号
液体喷射速度
贮液室中液体燃料密度
贮液室中液体燃料压力
燃烧室压力
相对流量
相对温度
弹丸行程
活塞行程
弹丸速度
活塞速度
相对已燃百分数
相对燃烧厚度
喷射孔长度
流量系数
喷孔面积
贮液室断面积
燃烧室断面积