| 近高超声速流中旋成体俯仰阻尼导数的计算 |
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| 引用本文： | 朱克勤,庄礼贤.近高超声速流中旋成体俯仰阻尼导数的计算[J].空气动力学学报,1988(2). |
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| 作者姓名： | 朱克勤 庄礼贤 |
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| 作者单位： | 中国科学技术大学
(朱克勤)，中国科学技术大学(庄礼贤) |
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| 摘 要： | 本文用改进的二阶激波-膨胀法导出了旋成体法向力静导数的二阶Eggers公式,并计算了俯仰尼阻导数。它与修正的Newton理论相比,由于在压力分布的计算中考虑了流线上前方气动参数的影响,理论上更加完善。计算结果与实验数据比较表明,这是一种比较有效的工程计算方法。
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| 关 键 词： | 动稳定性 高超音速流 导弹空气动力学 |
CALCULATION OF PITCHING DAMPING DERIVATIVES OF BODIES OF REVOLUTION IN LOW HYPERSONIC FIOWS |
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| Zhu Keqin Zhuang Lixian.CALCULATION OF PITCHING DAMPING DERIVATIVES OF BODIES OF REVOLUTION IN LOW HYPERSONIC FIOWS[J].Acta Aerodynamica Sinica,1988(2). |
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| Authors: | Zhu Keqin Zhuang Lixian |
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| Institution: | University of science and Technology of China |
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| Abstract: | In this paper,the improved second-order shock-expansion method has been extended to calculate pitching damping derivatives of bodies of revolution.The method is more reasonable than corrected Newtonian theory because influences of aerodynamic parameters in forward streamline are taken into account.The main region,which is researched in this paper,is low hypersonic flow.The method is also suitable to supersonic and hypersonic flows.The comparison of calculating results with experimental results shows that the calculating results are reasonable and the approximate method is valuable. |
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| Keywords: | dynamic stability hypersonic flow missile aerodynamics |
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