| 进口预旋对高负荷跨声风扇性能的影响分析 |
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| 引用本文： | 赵斌,刘宝杰. 进口预旋对高负荷跨声风扇性能的影响分析[J]. 航空动力学报, 2011, 26(3): 642-648 |
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| 作者姓名： | 赵斌 刘宝杰 |
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| 作者单位： | ,北京航空航天大学,能源与动力工程学院航空发动机气动热力国家级重点实验室,北京,100191 |
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| 摘 要： | 利用三维数值模拟手段,研究了全转速条件下高负荷风扇进口级转子的预旋设计形式和其对气动性能的影响,以及在优化的预旋分布规律下,转子的典型部分转速特性.该风扇转子叶尖切线速度为480m/s,设计总压比为2.55,负荷系数高达0.42.结果表明:使用常规转子仍能达到该负荷水平,但采用带进口导叶的设计形式十分必要;在转子叶尖采...
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| 关 键 词： | 高负荷风扇 气动性能 进口预旋 常规转子 典型部分转速 |
| 收稿时间： | 2010-01-22 |
| 修稿时间： | 2010-03-15 |
Analysis of inlet pre-swirl influence on aerodynamic performance in highly loaded transonic fan |
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| ZHAO Bin and LIU Bao-jie. Analysis of inlet pre-swirl influence on aerodynamic performance in highly loaded transonic fan[J]. Journal of Aerospace Power, 2011, 26(3): 642-648 |
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| Authors: | ZHAO Bin and LIU Bao-jie |
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| Affiliation: | School of Jet Propulsion of BeiHang University,School of Jet Propulsion of BeiHang University |
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| Abstract: | Numerical simulation was conducted to explore the inlet pre-swirl design methodology and its influence on aerodynamic performance for highly loaded inlet stage fan rotor at full speeds, as well as the typical part speeds characteristic with optimum inlet pre-swirl distribution. The fan rotor was designed to produce a total pressure ratio of 2.55 and loading parameter of 0.42 at a tip speed of 480m/s. The result indicates that traditional rotor has capability to achieve this loading level; notwithstanding inlet guide vane is necessary in design. The adoption of positive pre-swirl and low reaction degree increase tip performance effectively, negative pre-swirl is required at hub for stator basing on conventional design method; rotor downstream, rotor with pre-swirl design format above has favorable performance at typical part speeds. |
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| Keywords: | highly loaded fan aerodynamic design inlet pre-swirl traditional rotor typical part speeds |
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