| 绕振动旋成体的跨声速流数值分析 |
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| 引用本文： | 陆夕云,夏南.绕振动旋成体的跨声速流数值分析[J].空气动力学学报,1994,12(1):66-70. |
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| 作者姓名： | 陆夕云 夏南 |
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| 作者单位： | 中国科学技术大学 |
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| 摘 要： | 本文采用Ｅｕｌｅｒ方程和ＴＶＤ格式数值求解了小幅振动旋成体的非定常跨声速绕流问题，，假设在绕小幅振旋成体的非定常气流中，物理量的变化为平均定常扰动物理量的高阶小量，然后对Ｅｕｌｅｒ方程进行摄动展开，导出前两阶（零阶及一阶）摄动量的控制方程和相庆的边界条件，并进行数值求解。文中仅给出了振动旋成体的非定常压力分布。
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| 关 键 词： | 数值计算 跨声速流动 非定常流动 |
Numerical Analysis of Transonic Fl0w over Oscillating BodieS of Revolution |
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| Lu Xiyun Xia Nan Zhuang Lixian.Numerical Analysis of Transonic Fl0w over Oscillating BodieS of Revolution[J].Acta Aerodynamica Sinica,1994,12(1):66-70. |
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| Authors: | Lu Xiyun Xia Nan Zhuang Lixian |
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| Institution: | University of Science and Technology of China |
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| Abstract: | Unsteady transonic flow over oscillating bodies of revo-lution is numerically simulated by using the Euler equations and TVD scheme,In the present paper,suppose the variations of physical varia-bles in the flow field of the oscillating bodies with a small amplitude are the higher order small terms than the steady flow ones,the control equations and boundary conditions satisfied by the leading two terms are derived from the perturbated expansion of the Euler equations,then are numerically solved.In this paper,the unsteady pressure distribu-tion on the body surface is given. |
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| Keywords: | computational method numerical computation transonic flow unsteady flow |
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