| 小幅振动旋成体跨音速绕流的数值分析 |
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| 引用本文： | 陆夕云,夏南.小幅振动旋成体跨音速绕流的数值分析[J].中国科学技术大学学报,1992,22(4):461-467. |
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| 作者姓名： | 陆夕云 夏南 |
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| 作者单位： | 中国科学技术大学近代力学系
(陆夕云，夏南)，中国科学技术大学近代力学系(庄礼贤) |
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| 摘 要： | 假设绕小幅振动旋成体所导致的物理量的变化为平均定常扰动量的高阶小量,那么将物理量(速度、密度及压力)摄动展开后代入Euler方程,便导出了前两阶摄动量的控制方程和相应的边界条件,用TVD格式进行数值求解,得到了平均定常跨音速流(零阶)和基频(一阶)非定常分量的数值解。
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| 关 键 词： | 小幅振动旋成体 数值计算 跨音速流 非定常流 |
Numerical Analysis of Transonic Flow Around Oscillating Bodies of Revolution With Small Amplitudes |
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| Lu Xiyun Xia Nan Zhuang Lixian.Numerical Analysis of Transonic Flow Around Oscillating Bodies of Revolution With Small Amplitudes[J].Journal of University of Science and Technology of China,1992,22(4):461-467. |
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| Authors: | Lu Xiyun Xia Nan Zhuang Lixian |
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| Institution: | Department of Modern Mechanics |
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| Abstract: | The unsteady transonic flow around an oscillating body of revolution with a small amplitude is numerically simulated by using the Euler equations and TVD scheme. In the present study, suppose the variations induced by the oscillating body are the higher order small terms than the steady flow ones, then the dominating equations and boundary conditions are given from the pertured expansion of the Euler equations. The present method is examined here for the first time. |
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| Keywords: | oscillating body of revolution with a small amplitude numerical method transonic flow unsteady flow |
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