| 再人飞行器脉动压力环境的分析与预测 |
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| 引用本文： | 徐立功,刘振寰. 再人飞行器脉动压力环境的分析与预测[J]. 空气动力学学报, 1991, 0(4) |
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| 作者姓名： | 徐立功 刘振寰 |
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| 作者单位： | 中国科学技术大学(徐立功)，中国科学院力学研究所(刘振寰) |
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| 摘 要： | 本文分析了机动再入飞行器因非定常空气动力流动引起的物面脉动压力环境,并根据高超声速无粘流计算的表面压力分布,给出了一套预测各种脉动压力环境统计特性的工程计算公式。算例表明,预测的均方根脉动压力、功率谱密度和交叉功率谱密度与实验值是一致的。
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| 关 键 词： | 机动再入飞行器 脉动压力 功率谱密度 交叉功率谱密度 激波振荡 |
PREDICTION OF MANEUVERING REENTRY VEHICLES FLUCTUATING PRESSURE ENVIRONMENTS |
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| Xu Ligong. PREDICTION OF MANEUVERING REENTRY VEHICLES FLUCTUATING PRESSURE ENVIRONMENTS[J]. Acta Aerodynamica Sinica, 1991, 0(4) |
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| Authors: | Xu Ligong |
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| Abstract: | The surface fluctuating pressure environments of a maneuvering reentry vehicle resulting from unsteady aerodynamic flows have been investigated. According to surface pressure distribution calculated by hypersonic inviscid flow a set of prediction formulate of the statistical properties for the various fluctuating pressure environments have been given. Examples show that prediction results for the root-mean-square fluctuating pressure overall level, power spectral density, and cross-power spectral density are in good agreement with measurements. |
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| Keywords: | maneuvering reentry vehicle fluctuating pressure power spectral density cross-power spectral density shock wave oscillation. |
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