| 翼型表面明冰的数值模拟 |
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| 引用本文： | 张强,曹义华,胡利.翼型表面明冰的数值模拟[J].航空动力学报,2009,24(1):91-97. |
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| 作者姓名： | 张强 曹义华 胡利 |
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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, 北京 100191 |
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| 摘 要： | 提出一种翼型表面明冰的数值模拟方法.基于欧拉两相流理论,建立空气、水滴两相流控制方程;提出一种可穿透型壁面边界模拟水滴对翼型表面的撞击;采用考虑了粗糙度影响的边界层积分法求解结冰表面的对流换热特性,基于经典Messinger模型提出明冰数值模拟的热力学模型;利用冰层时间推进法模拟积冰过程,采用积冰法向生长假设生成积冰外形.对NACA 0012翼型在不同环境温度下的明冰冰形进行了预测,并与实验结果进行了对比.
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| 关 键 词： | 明冰 数值模拟 两相流 水滴 粗糙度 |
| 收稿时间： | 2007/12/18 0:00:00 |
| 修稿时间： | 2008/3/17 0:00:00 |
Numerical simulation of glaze ice accretions on an airfoil |
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| ZHANG Qiang,CAO Yi-hua and HU Li.Numerical simulation of glaze ice accretions on an airfoil[J].Journal of Aerospace Power,2009,24(1):91-97. |
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| Authors: | ZHANG Qiang CAO Yi-hua and HU Li |
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| Institution: | School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | An Eulerian method to numerically simulate glaze ice accretions on an airfoil has been presented.Based on two-phase flow theory,the governing equations of the airflow and droplets were established.A permeable wall was proposed to simulate the droplet impingement on the airfoil surface.An integral boundary layer method,modified to consider the roughness effect,was employed to evaluate the convective heat transfer coefficient.The thermodynamic model for glaze ice accretions was presented by performing the mas... |
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| Keywords: | glaze ice numerical simulation two-phase flows droplet roughness |
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