| 机翼表面结冰数值模拟 |
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| 引用本文： | 王燕,郝英立.机翼表面结冰数值模拟[J].东南大学学报(自然科学版),2009,39(5). |
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| 作者姓名： | 王燕 郝英立 |
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| 作者单位： | 1. 东南大学能源与环境学院,南京,210096
2. 东南大学能源与环境学院,南京,210096;东南大学空间科学与技术研究院,南京,210096 |
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| 基金项目： | 东南大学科学基金资助项目 |
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| 摘 要： | 分别采用欧拉-拉格朗日模型和多孔介质模型建立了空气绕流机翼流动、空气夹带过冷水滴运动和机翼表面冰层增长的数理模型,并进行了数值求解.获得空气绕流机翼流场、空气夹带的过冷水滴运动轨迹、机翼表面过冷水滴的收集系数分布、冰层厚度分布和冰层质量增长情况,并分析了攻角和过冷水滴直径等因素的影响.结果表明:水滴收集系数随着攻角和水滴平均直径的增大而增大;冰层覆盖整个机翼的前半部上下表面,以驻点附近最为集中,随时间增长而愈严重;随着功角增大,下表面积冰加重;但当攻角为15°时,总体结冰量却较之低攻角时减小.
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| 关 键 词： | 机翼 水滴轨迹 收集系数 冰层增长 |
Numerical simulation of ice accretion on airfoil |
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| Wang Yan,Hao Yingli.Numerical simulation of ice accretion on airfoil[J].Journal of Southeast University(Natural Science Edition),2009,39(5). |
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| Authors: | Wang Yan Hao Yingli |
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| Institution: | Wang Yan1 Hao Yingli1,2(1 School of Energy , Environment,Southeast University,Nanjing 210096,China)(2 Institute of Space Science , Technology,China) |
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| Abstract: | Numerical simulation of ice accretion on an airfoil was conducted based on a combined model of Euler-Lagrange method and porous media model.The flow field around the airfoil,the trajectories of super-cooled water droplet,the distribution of local collection efficiency,and the accretion process of ice on the airfoil surface were obtained under different conditions.The significant effects of attack angle and super-cooled droplet diameter on the distribution of impingement region,local collection efficiency,an... |
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| Keywords: | airfoil droplet trajectory collection efficiency ice accretion |
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