| 折叠式主弹翼气动特性研究 |
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| 引用本文： | 吴小胜.折叠式主弹翼气动特性研究[J].北京理工大学学报,2010,30(9):1024-1027. |
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| 作者姓名： | 吴小胜 |
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| 作者单位： | 北京理工大学,宇航学院,北京,100081 |
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| 基金项目： | 国家部委预研基金项目 |
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| 摘 要： | 针对制导航弹的气动设计要求,设计了一种前后折叠式弹翼.并使用数值计算和工程计算方法研究前后折叠式弹翼、钻石背弹翼以及后折前张式弹翼的气动特性.计算结果表明:前后折叠式弹翼与钻石背弹翼升力系数在攻角较小时接近,在攻角较大时,前后折叠式翼的升力系数大于钻石背弹翼;前后折叠式弹翼的升阻比最大;后折前张式弹翼的外形滚转阻尼力矩系数最小;钻石背弹翼的外形滚转阻尼力矩系数最大.
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| 关 键 词： | 制导航弹 气动特性 折叠式弹翼 数值计算 |
| 收稿时间： | 2009/10/21 0:00:00 |
Investigation into Aerodynamic Characteristics of Folding Wing Guided Bomb |
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| WU Xiao-sheng.Investigation into Aerodynamic Characteristics of Folding Wing Guided Bomb[J].Journal of Beijing Institute of Technology(Natural Science Edition),2010,30(9):1024-1027. |
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| Authors: | WU Xiao-sheng |
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| Institution: | WU Xiao-sheng (School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | To increase the ratio of lift to drag of guided bomb, a folding multi-surface wing was designed. Computational fluid dynamics (CFD) numerical simulation method and semi-empiric method was used to compare the aerodynamic characteristics of folding multi-surface wing to that of diamond back wing with the same airfoil, chord and surface area. The results indicate the following facts: the lift coefficient of folding multi-surface wing is close to the diamond back wing at small angle of attack, but, at large ang... |
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| Keywords: | guided bomb aerodynamic characteristics folding wing numerical calculation |
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