| 亚音速、大攻角、时间域完全非定常机翼气动力的计算方法 |
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| 引用本文： | 叶正寅,赵令诚,杨永年.亚音速、大攻角、时间域完全非定常机翼气动力的计算方法[J].航空学报,1989,10(1):70-73. |
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| 作者姓名： | 叶正寅 赵令诚 杨永年 |
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| 作者单位： | 西北工业大学
(叶正寅，赵令诚)，西北工业大学(杨永年) |
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| 摘 要： | 当前有关大攻角机翼气动力的数值方法,多数只适用于不可压情况。对于亚音速范围,只对定常情况进行过计算,至今尚未见到非定常方面的文章。为此,我们将文献1]的方法作进一步发展,使之适合于计算大攻角非线性问题。由于亚音速非定常时间滞后以及尾涡形状不断变化,所以计算比较复杂,本文在处理过程中力求简单。
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| 关 键 词： | 亚音速 大攻角 非定常 非线性气动力 |
| 收稿时间： | 1987-11-23; |
A COMPUTATIONAL METHOD OF AERODYNAMICS FOR SUBSONIC, FULLY UNSTEADY WINGS AT HIGH ANGLES OF ATTACK IN TIME-DOMAIN |
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| North-western Poiytechnical University Ye Zhengyin,Zhao Lingcheng and Yang Yongnian.A COMPUTATIONAL METHOD OF AERODYNAMICS FOR SUBSONIC, FULLY UNSTEADY WINGS AT HIGH ANGLES OF ATTACK IN TIME-DOMAIN[J].Acta Aeronautica et Astronautica Sinica,1989,10(1):70-73. |
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| Authors: | North-western Poiytechnical University Ye Zhengyin Zhao Lingcheng and Yang Yongnian |
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| Institution: | North-western Poiytechnical University |
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| Abstract: | A potential difference method for computing the aerodynamic loads on wings in fully unsteady, subsonic, high angles of attack flows with leading-edge or side-edge separations is presented in this paper. For this type of nonlinear problems, the developed method can provide the time varying aerodynamic loads and the velocity fields in time domains. The numer;cal results show in good agreement with the experimental data. |
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| Keywords: | subsonic high angle of attack unsteady nonlinear aerodynamic |
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