| 冲压发动机增程榴弹绕流流场数值分析 |
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| 引用本文： | 鞠玉涛,周长省,朱福亚.冲压发动机增程榴弹绕流流场数值分析[J].兵工学报,2006,27(2):219-221. |
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| 作者姓名： | 鞠玉涛 周长省 朱福亚 |
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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;南京理工大学,机械工程学院,江苏,南京,210094;南京理工大学,机械工程学院,江苏,南京,210094 |
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| 摘 要： | 数值模拟的控制方程为雷诺平均的可压缩纳维尔ー斯托克斯(Navier-Stokes)方程，湍流模型釆用k-t两方程模型，数值格式为ニ阶迎风格式。得到了冲压发动机增程炮弹的流场结构，结果表明：冲压发动机增程炮弹在高超音速下阻力系数无明显变化，而在亚音速和低超音速下，阻力系数提高。
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| 关 键 词： | 流体力学 冲压发动机 弹丸 数值模拟 空气动力学 |
| 文章编号： | 1000-1093（2006）02-0219-03 |
| 收稿时间： | 2005-03-11 |
| 修稿时间： | 2005-03-11 |
Numerical Analysis on Flow Field Characteristic of Ramjet Assisted Range Projectile |
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| JU Yu-tao,ZHOU Chang-sheng,ZHU Fu-ya.Numerical Analysis on Flow Field Characteristic of Ramjet Assisted Range Projectile[J].Acta Armamentarii,2006,27(2):219-221. |
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| Authors: | JU Yu-tao ZHOU Chang-sheng ZHU Fu-ya |
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| Affiliation: | School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094，Jiangsu, China |
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| Abstract: | The governing equations of the simulation are the Reynolels-averaged Navier-Stokes equa?tions and k-e model is adopted for turbulence flow. The numerical scheme is second order windward scheme. I he characteristics of flow field of ramjet assisted range projectile were simulated by a numeri-cal method. The results show that the air drag coefficient is not obviously changed at high supersonic and is increased at low supersonic and subsonic, wmch is caused by the pipelike structure in the projec?tile. |
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| Keywords: | fluid mechanics ramjet projectile numerical simulation aerodynamics |
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