| 双自动机并联发射时膛口流场数值仿真 |
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| 引用本文： | 苏晓鹏,钱林方,戴劲松.双自动机并联发射时膛口流场数值仿真[J].计算机仿真,2009,26(8):13-17. |
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| 作者姓名： | 苏晓鹏 钱林方 戴劲松 |
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| 作者单位： | 南京理工大学机械工程学院,江苏,南京,210094 |
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| 摘 要： | 为研究双自动机近距离并联发射时膛口流场特征及其对弹丸运动影响问题,采用计算流体力学方法结合动网格技术,建立了包含弹丸运动的膛口流场数值仿真模型,对双自动机近距离并联发射时复杂膛口流场进行了数值仿真.以三种不同身管间距为例,得出了双自动机并联发射时膛几流场的形成、发展及相互干扰过程,及膛口流场对弹丸出炮u后运动姿态的影响情况.仿真结果表明双自动机在近距离发射时,相互干扰的膛口流场对弹丸出炮口后运动姿态有较大影响,以至影响火炮系统射击精度.在双自动机近距离并联发射时,为保证武器系统射击精度,应采取相应措施消除两身管间膛口流场的相互干扰,减小膛内流场对弹丸运动姿态的影响.
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| 关 键 词： | 自动机 并联发射 膛口流场 数值仿真 |
Muzzle Flow Field Numerical Simulation of Double Guns Parallel Firing |
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| SU Xiao-peng,QIAN Lin-fang,Dai Jin-song.Muzzle Flow Field Numerical Simulation of Double Guns Parallel Firing[J].Computer Simulation,2009,26(8):13-17. |
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| Authors: | SU Xiao-peng QIAN Lin-fang Dai Jin-song |
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| Affiliation: | College of Mechanical Engineering;Nanjing University of Science and Technology;Nanjing Jiangsu 210094;China |
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| Abstract: | To study the muzzle flow filed characteristic and its influence on the bullet moving during double guns parallel firing with small interval,by adopting computational fluid dynamics and dynamic mesh techniques,a model considering the bullets moving is presented in this paper to simulate the complicated muzzle flow filed during double guns parallel firing with small interval.The creating,developing and interfering processes of the muzzle flow field are obtained.The influence of the muzzle flow filed on the at... |
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| Keywords: | Automatic gun Parallel fire Muzzle flow field Numerical simulation |
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