60kW级电驱涵道风扇气动设计与参数影响分析
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上海交通大学

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V231

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国家自然科学基金(12372221)资助项目


Aerodynamic Design and Parameter Influence Analysis of 60kW-class Electrically Driven Ducted Fan
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Shanghai Jiao Tong University

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    摘要:

    相较于同尺寸的孤立螺旋桨,涵道风扇以其高气动效率、卓越安全性和低气动噪声等特质,成为航空电气化最具潜力的电推进方式之一。本文以航空发动机压气机的设计准则为基础,充分考虑涵道风扇的设计特点,构建了一套完整的电驱动涵道风扇气动设计流程。以60 kW级涵道风扇为研究对象,首先通过热力计算确定总体性能方案,然后基于几何关系进行一维设计,进一步根据沿径截面速度三角形的规律完成叶片的三维造型。在此基础上,详细研究了转/静子稠度、转/静子展弦比以及转静子间距等五个关键参数对风扇气动性能的影响规律。特别侧重于分析了风扇的几何参数对于压比、效率、喘振裕度以及平均出口气流角等性能指标的影响。

    Abstract:

    Compared with isolated propellers of the same size, the ducted fan has become one of the most promising electric propulsion methods for aviation electrification due to its qualities of high aerodynamic efficiency, excellent safety and low aerodynamic noise. In this paper, a complete set of aerodynamic design process for electrically driven ducted fan is constructed based on the design guideline of Aero-engine compressor, with full consideration of the design characteristics of ducted fan. Taking the 60kW-class ducted fan as the research object, the overall performance scheme is firstly determined by thermal calculation, then the one-dimensional design is carried out based on the geometric relationship, and the three-dimensional modeling of the blades is further completed according to the law of the velocity triangle along the radial section. On this basis, the influence of five key parameters on the aerodynamic performance of the fan, such as rotor/stator solidity, rotor/stator aspect ratio, and the axial gap between rotor and stator, are investigated in detail. Special emphasis is placed on analyzing the effects of the geometric parameters of the fan on the performance indexes such as pressure ratio, efficiency, surge margin, and average outlet airflow angle.

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刘宇璐,李健,羌晓青,等. 60kW级电驱涵道风扇气动设计与参数影响分析[J]. 科学技术与工程, , ():

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  • 收稿日期:2023-12-04
  • 最后修改日期:2024-06-20
  • 录用日期:2024-07-09
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