| 基于低雷诺数串置翼型气动特性研究 |
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| 引用本文： | 张国庆,杨树兴.基于低雷诺数串置翼型气动特性研究[J].计算力学学报,2010,27(4). |
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| 作者姓名： | 张国庆 杨树兴 |
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| 作者单位： | 北京理工大学,宇航科学技术学院,北京,100081 |
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| 摘 要： | 基于低雷诺数,应用二维CFD方法,对串置翼型的气动特性进行了数值模拟。比较了串置翼型布局与常规单独翼型的升阻特性。分析了翼差角度对串置翼升阻特性的影响,并且在保持鸭翼±5°偏角不变的同时,研究了两翼之间的距离以及安装的相对高度对整个串置翼型升阻特性的影响。发现上鸭翼与主翼相结合具有相对较高的最大升力系数和临界迎角, 可以显著改善串置翼型的气动特性。
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| 关 键 词： | 串置翼型 雷诺数 鸭翼 网格 |
| 收稿时间： | 2008/8/25 0:00:00 |
Experimental investigation of the aerodynamic |
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| ZHANG Guo-qing and YANG Shu-xing.Experimental investigation of the aerodynamic[J].Chinese Journal of Computational Mechanics,2010,27(4). |
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| Authors: | ZHANG Guo-qing and YANG Shu-xing |
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| Institution: | School of Aerospace Science and Technology, Beijing Institute of Technology, Beijing 100081, China;School of Aerospace Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Based on low Reynolds number, the aerodynamic characteristics of the Tandem-Airfoil were simulated numerically in using of 2D-CFD method. The lift and drag characteristics between the Tandem-Airfoil and the single airfoil had been compared. The impacts on the lift and drag characteristics made by the different angles of the canard and wing (δ) had been analyzed. And keeping αc = ±5°, the impacts made by the relative distance and height of the installation had been investigated, finding that the canard in the upper position had the bigger (Cl)max and αcr, it could significantly improve the aerodynamic characteristics of Tandem-Airfoil. |
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| Keywords: | Tandem-Airfoil lift-to-drag ratio canard mesh |
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