Wind Tunnel Test of the Icing Characteristics of Airfoil Rotating around a Vertical Axis

IF 0.9 Q4 ENGINEERING, MECHANICAL

International Journal of Rotating Machinery Pub Date : 2020-11-03 DOI:10.1155/2020/8841076

Yan Li, Lei Shi, Wenfeng Guo, Ce Sun, Yu Jiang

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引用次数: 1

Abstract

To determine the process of icing on the rotating machinery, an icing experiment on a rotating airfoil blade was carried out in this paper. First, an icing wind tunnel was fabricated, and its conditional parameters were calibrated. The calibration results showed that the performance of this icing wind tunnel was reliable and stable. The experimental temperature was -15°C, and the MVD was 50 μm. Then, an icing experiment on the rotating blade with the NACA0018 airfoil was carried out. The characteristics of icing, including icing distribution, growth rate of icing, and thickness of the ice layer, were defined and quantitatively analyzed under different tip speed ratios and setting angles. The results show that the type of icing changes from rime ice to glaze ice with an increase in the tip speed ratio. The dimensionless icing area and dimensionless thickness of the ice layer both increase with an increase in the icing time. The growth rate of icing increases rapidly at the initial icing stage and then decreases dramatically under each tip speed ratio condition.

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绕垂直轴旋转翼型结冰特性的风洞试验

为了确定旋转机械的结冰过程，本文对旋转翼型叶片进行了结冰实验。首先，制作了一个结冰风洞，并对其条件参数进行了标定。标定结果表明，该结冰风洞性能稳定可靠。实验温度为-15°C，MVD为50 μm。然后，对NACA0018翼型的旋转叶片进行了结冰实验。定义并定量分析了不同叶尖速比和设定角下的结冰特性，包括结冰分布、结冰增长率和冰层厚度。结果表明，随着叶尖速比的增大，结冰类型由霜状冰变为釉状冰。无量纲结冰面积和无量纲冰层厚度都随着结冰时间的增加而增加。结冰的增长率在初始结冰阶段迅速增加，然后在每个叶尖速比条件下急剧下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Rotating Machinery ENGINEERING, MECHANICAL-

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： This comprehensive journal provides the latest information on rotating machines and machine elements. This technology has become essential to many industrial processes, including gas-, steam-, water-, or wind-driven turbines at power generation systems, and in food processing, automobile and airplane engines, heating, refrigeration, air conditioning, and chemical or petroleum refining. In spite of the importance of rotating machinery and the huge financial resources involved in the industry, only a few publications distribute research and development information on the prime movers. This journal is the first source to combine the technology, as it applies to all of these specialties, previously scattered throughout literature.