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论文:2018,Vol:36,Issue(6):1045-1051 |
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引用本文： |
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邓阳平, 米百刚, 张言. 涵道风扇气动特性影响因素数值计算研究[J]. 西北工业大学学报 |
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Deng Yangping, Mi Baigang, Zhang Yan. Research on Numerical Calculation for Aerodynamic Characteristics Analysis of Ducted Fan[J]. Northwestern polytechnical university |
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| 涵道风扇气动特性影响因素数值计算研究 |
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| 邓阳平1, 米百刚2, 张言3 |
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1. 西北工业大学 航空学院, 陕西 西安 710072;
2. 清华大学 航天航空学院, 北京 100084;
3. 中国航空无线电电子研究所, 上海 200233 |
| 摘要: |
| 以某涵道风扇系统模型为研究对象，基于滑移动网格技术，建立了非定常气动力计算方法，并用风洞试验对其进行了验证分析。并在此基础上计算分析了影响涵道风扇系统气动特性的黏性效应、桨-涵道间隙以及桨盘位置等因素。结果表明，黏性效应代表了桨尖和涵道之间附面层干扰的大小，考虑黏性效应能够提高气动力计算的准确性；桨-涵道间隙决定了螺旋桨影响涵道的效果，间隙越小，影响越大，在涵道产生的附加拉力越大；桨盘位置则决定了进入螺旋桨的流场品质和桨-涵道间隙，合理的位置应保证涵道截面对气流的整流效果最佳且间隙符合设计要求。 |
| 关键词:
涵道风扇
黏性效应
桨-涵道间隙
桨盘位置
滑移网格
非定常气动力
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| Research on Numerical Calculation for Aerodynamic Characteristics Analysis of Ducted Fan |
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| Deng Yangping1, Mi Baigang2, Zhang Yan3 |
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1. School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;
2. School of Astronautics and Aeronautics, Tsinghua University, Beijing 100084, China;
3. Chinese Aeronautical Ratio and Electronics Research Institute, Shanghai 200233, China |
| Abstract: |
| By taking a typical ducted fan system model as the research object, the unsteady aerodynamics calculation method is established based on slide dynamic mesh technology. After the experimental validation of calculation method, the influence factors of viscous effect, tip clearance and propeller disk location are analyzed based on numerical calculation. The research results show that, the viscous effect embodies the boundary layer interactions between propeller tip and duct, and the calculation accuracy can be improved by considering viscous effect; the tip clearance determines the influence effect of propeller, and the decreasing of tip clearance leads to the increasing of duct thrust; the propeller disk location determines the flow quality and tip clearance, a reasonable location must bring the optimal fairing effect and ensures the tip clearance meeting the design requirements. |
| Key words:
ducted fan
viscous effect
tip clearance
propeller disk location
dynamic mesh
unsteady aerodynamics
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| 收稿日期: 2018-01-20
修回日期:
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| DOI: |
| 通讯作者:
Email： |
| 作者简介: 邓阳平(1980-),西北工业大学助理研究员,主要从事飞行器总体设计与飞行力学研究。
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| 作者相关文章 |
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| 邓阳平 在本刊中的所有文章 |
| 米百刚 在本刊中的所有文章 |
| 张言 在本刊中的所有文章 |
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1．杨磊, 叶正寅.基于模糊逻辑方法的涵道风扇飞行器非定常气动力建模及应用[J]. 西北工业大学学报, 2014,32(6): 849-856 |
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