| 不同结构柔性翼的气动特性风洞试验研究 |
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| 引用本文： | 李占科,牛文,王进.不同结构柔性翼的气动特性风洞试验研究[J].实验流体力学,2011,25(1). |
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| 作者姓名： | 李占科 牛文 王进 |
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| 作者单位： | 西北工业大学航空学院,西安,710072 |
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| 基金项目： | 国家自然基金项目(10802066) |
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| 摘 要： | 通过对6种不同结构的柔性翼模型进行的变迎角、变风速风洞试验,研究对比了不同柔度的柔性翼的升阻特性以及对风速变化的响应特性。结果表明,微型飞机采用柔性翼虽然降低了机翼升力的产生,但能够明显改善升阻比;不同柔度的柔性翼会直接影响微型飞机对风速变化的敏感程度,当机翼结构和柔度经过设计后,可以显著提高微型飞机对风速变化的适应能力。试验数据和结论对提高微型飞机的升阻特性以及对风速变化的响应特性具有一定参考价值。
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| 关 键 词： | 风洞试验 柔性翼 气动特性 风速变化 |
A wind tunnel research of flexible wings with different reinforcements |
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| LI Zhan-ke,NIU Wen,WANG Jin.A wind tunnel research of flexible wings with different reinforcements[J].Experiments and Measur in Fluid Mechanics,2011,25(1). |
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| Authors: | LI Zhan-ke NIU Wen WANG Jin |
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| Institution: | LI Zhan-ke,NIU Wen,WANG Jin(School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China) |
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| Abstract: | This paper has done a research of aerodynamic characters and a comparison of sensitivity to wind variations of 6 different models according to the datas of a wind tunnel experiment.The results show that,firstly,the lift-to-drag ratio of MAVs can be significantly improved by using flexible wings although its lift-coefficients has been reduced.Secondly,the sensitivity of MAVs to variable wind has obvious relationship with the rigidness and reinforcement of flexible wings.All the results in this paper can be f... |
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| Keywords: | wind tunnel test flexible wing aerodynamic characteristics wind variation |
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