| 含侧向支柱冲压增程弹用进气道复杂流场数值模拟 |
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| 引用本文： | 陈雄,周长省,郑亚.含侧向支柱冲压增程弹用进气道复杂流场数值模拟[J].弹箭与制导学报,2007,27(4):181-184. |
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| 作者姓名： | 陈雄 周长省 郑亚 |
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| 作者单位： | 南京理工大学机械工程学院,南京,210094 |
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| 摘 要： | 采用块结构网格与二阶精度流场分区求解技术,对含侧向支柱冲压增程弹丸进气道内外复杂流场进行了数值模拟。通过数值模拟得到了对应于不同来流马赫数和攻角情况下,临界工况时,超声速进气道内外粘性流场复杂的波系结构。当进气道扩压段有侧向支柱存在时,进气道总压恢复系数和动能系数均有所降低,而流场畸变指数则显著增大。由于攻角的存在,进气道总压恢复系数和动能系数均有所降低,而流场畸变指数则明显增大。
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| 关 键 词： | 进气道 分区算法 TVD格式 冲压发动机 弹丸 |
| 收稿时间： | 2006-10-11 |
| 修稿时间： | 2007-01-05 |
Numerical Simulation on Complex Flow Field of Ramjet Assisted Range Projectiles with Struts |
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| CHEN Xiong,ZHOU Chang-sheng,ZHENG Ya.Numerical Simulation on Complex Flow Field of Ramjet Assisted Range Projectiles with Struts[J].Journal of Projectiles Rockets Missiles and Guidance,2007,27(4):181-184. |
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| Authors: | CHEN Xiong ZHOU Chang-sheng ZHENG Ya |
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| Affiliation: | School of Mechanical Engineering, NUST, Nanjing 210094,China |
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| Abstract: | Applied block structure grid and second-order zonal solver method, the numerical simulation on supersonic inlet complex flow field of solid rocket ramjet assisted range projectiles with struts was preseuted. Complex wave structures of supersonic inlet at different inflow Mach number and angle of attack related ro critical status were achieved by numerical simulation. When there are struts at the divergent part of inlet, the total pressure recovery coefficient and the kinetic energy coefficient of inlet decrease, while the flow distortion index increases obviously, Due to the existence of angle of attack, the total pressure recovery coefficient and the kinetic energy coefficient of inlet decrease, while the flow distortion indcx increases obviously. |
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| Keywords: | inlet zonal method TVD scheme ramjet projectiles |
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