| 降雨对翼型气动性能影响的机理研究 |
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| 引用本文： | 张瑞民,曹义华.降雨对翼型气动性能影响的机理研究[J].飞行力学,2011,29(1):70-73. |
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| 作者姓名： | 张瑞民 曹义华 |
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| 作者单位： | 北京航空航天大学航空科学与工程学院; |
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| 摘 要： | 利用计算流体力学软件FLUENT 6.3.26中的拉格朗日离散相模型研究了降雨条件下翼型的气动特性变化,并应用UDF(用户自定义函数)对FLUENT中自带的Wilcox转捩模式进行了修正,对降雨对翼型气动性能的影响机理进行了研究.结果表明,在降雨条件下,翼型表面积聚的水膜层及其表面粗糙度会影响翼型表面的光洁度,引起边界...
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| 关 键 词： | 降雨 翼型 气动性能 机理 水膜层 转捩 分离 |
Mechanisms research of rain effects on airfoil aerodynamic performance |
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| ZHANG Rui-min,CAO Yi-hua.Mechanisms research of rain effects on airfoil aerodynamic performance[J].Flight Dynamics,2011,29(1):70-73. |
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| Authors: | ZHANG Rui-min CAO Yi-hua |
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| Institution: | ZHANG Rui-min,CAO Yi-hua(School of Aeronautics Science and Technology,BUAA,Beijing 100191,China) |
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| Abstract: | The aerodynamic characteristics of an airfoil in rain condition were studied with the Lagrangian discrete phase model in the computational fluid dynamics soft ware FLUENT 6.3.26.The mechanism of rain effects on airfoil aerodynamic performance was also investigated based on modifying the Wilcox transition mode with a UDF(user-defined function).It is shown that the water film accumulated on airfoil surfaces and the film roughness can influence the smoothness of the airfoil surfaces and induce premature transi... |
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| Keywords: | rain airfoil aerodynamic performance mechanism water film layer transition separation |
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