| 火箭推力偏心特性研究 |
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| 引用本文： | 张庆民,武晓松,王栋.火箭推力偏心特性研究[J].南京理工大学学报(自然科学版),2005,29(3):257-259. |
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| 作者姓名： | 张庆民 武晓松 王栋 |
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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： | 该文应用巴特勒提出的五面体双特征曲线网格方法对火箭喷管扩张段内的非定常非对称流场进行了数值模拟，获得了锥形喷管侧向推力随时间的变化曲线。分析表明，该文计算的侧向推力结果与定常状态下的数据是吻合的。证明五面体双特征曲线网格方法可用来研究非定常流动条件下的推力偏心特性。
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| 关 键 词： | 火箭喷管 二维非定常非对称流动 数值模拟 推力偏心 |
| 文章编号： | 1005-9830(2005)03-0257-03 |
| 修稿时间： | 2004年7月25日 |
Rocket Thrust Misalignment Characteristics |
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| ZHANG Qing-min,WU Xiao-song,WANG Dong.Rocket Thrust Misalignment Characteristics[J].Journal of Nanjing University of Science and Technology(Nature Science),2005,29(3):257-259. |
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| Authors: | ZHANG Qing-min WU Xiao-song WANG Dong |
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| Abstract: | The pentahedral bicharacteristic curve grid developed by Butler is used to numerically simulate the unsteady and non-symmetric supersonic flow field in the divergence of a rocket nozzle.The side force of the conical nozzle as a function of time is calculated through the flow integral. Good agreement is proved between the results in the present paper and the data in a steady state.The pentahedral bicharacteristic curve grid can be applied to investigate the thrust misalignment characteristics in a unsteady flow. |
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| Keywords: | rocket nozzles two-dimensional unsteady and non-symmetric flow field numerical simulation thrust misalignment |
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