| 钝化对高超声速乘波体飞行器升阻比的影响 |
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| 引用本文： | 张玉祥,徐金标,王厚庆. 钝化对高超声速乘波体飞行器升阻比的影响[J]. 弹箭与制导学报, 2011, 31(4): 243-245 |
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| 作者姓名： | 张玉祥 徐金标 王厚庆 |
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| 作者单位： | 1. 第二炮兵工程学院,西安,710025
2. 中国兵器工业第203研究所,西安,710065 |
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| 摘 要： | 飞行器在高超声速飞行时,来流会对其前缘产生严重的烧蚀,因此需要对前缘进行钝化处理。而钝化会引起飞行器周围流场的变化,影响飞行器的性能。通过运用数值计算的方法,验证了加大钝化半径可以降低前缘的热流密度,研究了钝化对高超声速乘波体飞行器升阻比的影响,比较了不同钝化半径情况下飞行器的升阻比变化。研究表明钝化导致飞行器的升阻比下降且随着钝化半径增大升阻比降幅增大。
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| 关 键 词： | 钝化 高超声速 乘波体 升阻比 热流密度 |
The Effect of Bluntness on Lift-drag Ratio of a Hypersonic Waverider Aerocraft |
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| ZHANG Yuxiang,XU Jinbiao,WANG Houqing. The Effect of Bluntness on Lift-drag Ratio of a Hypersonic Waverider Aerocraft[J]. Journal of Projectiles Rockets Missiles and Guidance, 2011, 31(4): 243-245 |
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| Authors: | ZHANG Yuxiang XU Jinbiao WANG Houqing |
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| Affiliation: | ZHANG Yuxiang1,XU Jinbiao1,WANG Houqing2(1 The Second Artillery Engineering College,Xi'an 710025,China,2 No.203 Research Institute of China Ordnance Industries,Xi'an 710065,China) |
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| Abstract: | The leading edge would be seriously ablated by the flow as aerocraft was in hypersonic flight,so it must be blunted.But the bluntness would cause changes in the flow field around the aerocraft,which would affect the performance of aerocraft.Numerical simulation was used to prove increasing the radius of the leading edge can reduce the heat flux of it.The effect of the bluntness on the lift-drag ratio of the hypersonic waverider aerocraft was investigated to compare the changes of lift-drag ratio on the cond... |
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| Keywords: | bluntness hypersonic waverider lift-drag ratio heat flux |
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