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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]. Journal of Experiments in Fluid Mechanics, 2015, (1): 55-59. DOI: 10.11729/syltlx20130039
Citation: Liu Yi, Zhao Xiaoxia, Jiang Zonghui, Ren Qingzhu. The computational and experimental investigation on winglets of a low speed aircraft[J]. Journal of Experiments in Fluid Mechanics, 2015, (1): 55-59. DOI: 10.11729/syltlx20130039
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The computational and experimental investigation on winglets of a low speed aircraft

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  • 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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