| 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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| 基于低雷诺数串置翼型气动特性研究 |
| Experimental investigation of the aerodynamic |
| 投稿时间：2008-08-25 |
| DOI：10.7511/jslx20104028 |
| 中文关键词: 串置翼型 雷诺数 鸭翼 网格 |
| 英文关键词:Tandem-Airfoil lift-to-drag ratio canard mesh |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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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