弯曲叶片静子对核心机驱动风扇级的影响研究

发布时间：2018-03-04 12:35

  本文选题：核心机驱动风扇级　切入点：静子　出处：《机械设计与制造》2016年04期 　论文类型：期刊论文

【摘要】：针对核心机驱动风扇级气动设计问题,采用定常数值模拟方法,对某核心机驱动风扇级进行建模,分别采用直叶片静子和弯曲叶片静子在级环境中进行三维仿真,对比分析了单外涵模式和双外涵模式下分别采用直叶片静子和弯曲叶片静子的气动参数和流场,并揭示了不同模式下静子的气动参数特点,结果表明,正弯曲叶片适用于核心机驱动风扇级,其能够改变静子载荷的径向分布,削弱根部的气流分离,减少了气动损失,提高了效率,且对两种工作模式均有效;单外涵模式静子宜采用偏负攻角设计。
[Abstract]:Aiming at the aerodynamic design problem of the fan stage driven by the core engine, a steady numerical simulation method is used to model the fan stage driven by a certain core machine, and the stator of the straight blade and the stator of the curved blade are used to carry out the three-dimensional simulation in the stage environment, respectively. The aerodynamic parameters and flow field of stator with straight blade and curved blade in single culvert mode and double culvert mode are compared and analyzed, and the characteristics of aerodynamic parameters in different modes are revealed. The positive bending blade is suitable for driving fan stage of the core machine. It can change the radial distribution of the static load, weaken the air flow separation at the root, reduce the aerodynamic loss, improve the efficiency, and be effective for both working modes. The single external culvert model should be designed with partial negative angle of attack.
【作者单位】： 中国民用航空飞行学院航空工程学院;
【基金】：国家自然科学基金项目(51306201) 中国民航飞行学院青年基金项目(Q2014-037)
【分类号】：V233
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本文编号：1565678