变弯度导叶对某高负荷双级风扇气动性能的影响

吴东; 金东海; 曹志鹏; 安利平; 桂幸民

doi:10.13224/j.cnki.jasp.2014.12.026

变弯度导叶对某高负荷双级风扇气动性能的影响

doi: 10.13224/j.cnki.jasp.2014.12.026

1. 北京航空航天大学能源与动力工程学院, 北京 100191;
2. 中国航空工业集团公司中国燃气涡轮研究院, 成都 621703

基金项目:

国家自然科学基金(51006005,50736007)

详细信息

作者简介:
吴东(1989-), 男, 重庆合川人, 硕士生, 主要从事叶轮机械气动热力学研究.

中图分类号: V231.3
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- 文章访问数: 1385
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- 被引次数: 0
出版历程
- 收稿日期: 2013-08-17
- 刊出日期: 2014-12-28

Influence on aerodynamic performance of a highly loaded two-stage fan with variable inlet guide vane

1. School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. China Gas Turbine Establishment, Aviation Industry Corporation of China, Chengdu 621703, China

摘要

摘要: 为了改善某高负荷双级风扇在非设计转速出现的裕度不足和转子攻角过大的问题,研究了变弯度导叶的调节对高负荷双级风扇气动性能和内部流场的影响,对比分析了不同形式变弯度导叶和传统可调导叶的性能差异.数值模拟结果表明:80%转速时高负荷双级风扇的绝热效率随着正预旋角度增加而显著增加,预旋角度为30°时的绝热效率提高了3.5%;传统可调导叶扩稳效果较优,受到大预旋角度下大损失的限制;变弯度导叶的开缝形式、开缝位置、导叶稠度均与气动性能密切相关,具体设计需要根据高负荷双级风扇工作情况进行探讨.
- 变弯度导叶 /
- 高负荷 /
- 双级风扇 /
- 气动性能 /
- 预旋角度
Abstract: In order to improve the stall margin and decrease the rotor attack angle of a highly loaded two-stage fan at off-design speed, different forms of variable inlet guide vane(VIGV) and traditional adjustable inlet guide vane were simulated, and the aerodynamic performance and internal flow field of highly loaded two-stage fan were analyzed. The numerical simulation results show that: at the 80% design speed, the highly loaded two-stage fan's adiabatic efficiency increases obviously with the increase of the VIGV's positive prewhirl, and the adiabatic efficiency increases 3.5% with prewhirl angle of 30 degrees; although traditional adjustable inlet guide vane has a better effect on the expanding stability, the loss is biggest when it needs a large prewhirl angle; the slot form, the slot position and the solidity of VIGV have a considerable influence on aerodynamic performance, with the design depending on the particular working conditions of the highly loaded two-stage fan.
- variable inlet guide vane /
- highly loaded /
- two-stage fan /
- aerodynamic performance /
- prewhirl angle

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参考文献(21)

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