| 低速飞机加装翼梢小翼的CFD数值计算及风洞试验研究 |
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| 引用本文： | 刘毅,赵晓霞,江宗辉,任庆祝. 低速飞机加装翼梢小翼的CFD数值计算及风洞试验研究[J]. 实验流体力学, 2015, 0(1): 55-59. DOI: 10.11729/syltlx20130039 |
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| 作者姓名： | 刘毅 赵晓霞 江宗辉 任庆祝 |
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| 作者单位： | 中航飞机股份有限公司 研发中心，陕西 汉中 723000 |
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| 摘 要： | 针对某四发涡桨飞机飞行速度较低,巡航升力系数较大的特点,通过加装翼梢小翼改善翼尖流场特性而提高巡航升阻比。经数值计算和风洞试验验证表明,几何参数优化后的小翼,可以使飞机久航点升阻比提高8%,远航点升阻比提高4.8%。加装翼梢小翼气动特性的CFD数值计算和风洞试验结果吻合良好,可作为小翼外形进一步优化后快捷、经济的验证手段。
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| 关 键 词： | 翼梢小翼 升阻比 诱导阻力 CFD数值计算 风洞试验 |
The computational and experimental investigation on winglets of a low speed aircraft |
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| Liu Yi,Zhao Xiaoxia,Jiang Zonghui,Ren Qingzhu. The computational and experimental investigation on winglets of a low speed aircraft[J]. Experiments and Measur in Fluid Mechanics, 2015, 0(1): 55-59. DOI: 10.11729/syltlx20130039 |
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| Authors: | Liu Yi Zhao Xiaoxia Jiang Zonghui Ren Qingzhu |
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| Affiliation: | Liu Yi;Zhao Xiaoxia;Jiang Zonghui;Ren Qingzhu;Research and Development Center,AVIC Aircraft Co.,LTD.;Hanzhong Branch AVIC Aircraft Co.,LTD; |
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| Abstract: | An aircraft with four turbo-propeller engines is characterized by low speed and relative high cruise lift coefficient.Winglets are utilized to improve the flow condition around the wing tips and increase the lift-to-drag ratio.CFD calculation and wind tunnel tests show that the lift-to-drag ratio at endurance cruise can be increased by 8%,while the lift-to-drag ratio at range cruise can be increased by 4.8% after the optimization of geometric parameters.The results of CFD simulation about the aerodynamic characteristics of the winglet agree well with wind tunnel test results, which could be a convenient and economic method for further optimization of winglet geometry. |
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| Keywords: | winglet lift-to-drag ratio induced drag CFD simulation wind tunnel test |
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