| 大振幅非定常实验数据表达与数学模型研究 |
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| 引用本文： | 黄达,李志强,吴根兴. 大振幅非定常实验数据表达与数学模型研究[J]. 空气动力学学报, 1999, 17(1): 68-72 |
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| 作者姓名： | 黄达 李志强 吴根兴 |
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| 作者单位： | 南京航空航天大学,南京,210016 |
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| 摘 要： | 本文采用一种新颖的方法，对大振幅非定常实验数据进行处理，建立了气动导数数据库，在此基础上，运用Ｄｕｈａｍｅｌ积分法，计算了模型迎角按任意规律变化时的非定常空气动力特性。计算结果与实验结果比较表明，两者符合很好。
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| 关 键 词： | 大振幅 非定常流 数据处理 数学模型 |
Study of Data Expression and Mathematical Modelling for Unsteady Experiment of a Model Pitching in Large Amplitude |
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| Huang Da,Li Zhiqiang,Wu Genxing. Study of Data Expression and Mathematical Modelling for Unsteady Experiment of a Model Pitching in Large Amplitude[J]. Acta Aerodynamica Sinica, 1999, 17(1): 68-72 |
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| Authors: | Huang Da Li Zhiqiang Wu Genxing |
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| Abstract: | A new method is used to process the experimental data of a model pitching in large angle of attack.The data base of dynamic aerodynamics is established.On the base of this,the unsteady aerodynamic characteristics of a model pitching in the large angle of attack in an arbitary law is calculated by the Duhamel integral.An excellent agreement between numerical and experimental results is obtained. |
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| Keywords: | unsteady flow large amplitude data processing mathematical models |
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