| 非结构网格在积冰数值模拟中的应用 |
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| 引用本文： | 张强,高正红,傅林.非结构网格在积冰数值模拟中的应用[J].航空动力学报,2011,26(5):977-983. |
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| 作者姓名： | 张强 高正红 傅林 |
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| 作者单位： | 西北工业大学,航空学院,翼型、叶栅空气动力学国防科技重点实验室,西安,710072 |
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| 摘 要： | 基于非结构网格对翼型表面的积冰进行了数值模拟研究.通过求解气体欧拉方程得到翼型的绕流流场,使用穿透型壁面边界模拟水滴对翼型表面的撞击,采用迭代法对水滴控制方程进行数值求解,得到翼型表面的水滴收集特性;采用不同的积冰冻结模型模拟霜冰和明冰的冻结过程;利用冰层时间推进法模拟积冰过程,基于积冰法向生长假设生成积冰外形.对NA...
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| 关 键 词： | 积冰 过冷水滴 翼型 非结构网格 两相流 数值模拟 |
| 收稿时间： | 2010/12/29 0:00:00 |
| 修稿时间： | 2011/3/21 0:00:00 |
Application of unstructured grids in numerically simulating ice accretions |
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| ZHANG Qiang,GAO Zheng-hong and FU Lin.Application of unstructured grids in numerically simulating ice accretions[J].Journal of Aerospace Power,2011,26(5):977-983. |
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| Authors: | ZHANG Qiang GAO Zheng-hong and FU Lin |
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| Institution: | ZHANG Qiang,GAO Zheng-hong,FU Lin(National Key Laboratory of Science and Technology on Aerodynamic Design and Research,School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China) |
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| Abstract: | Based on unstructured grids,the ice accretions on airfoils have been numerically simulated.The air flowfield was solved using the Euler equations.A permeable wall was used to simulate the droplet impingement on airfoils.An iterative method was developed to solve the governing equations for droplets.The collection efficiency was calculated from the droplet flowfield.The different freezing models corresponding to the rime and glaze ice were employed to simulate the freezing process.The process of ice accretio... |
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| Keywords: | ice accretion supercooled droplet airfoil unstructured grid two-phase flow numerical simulation |
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