跨声速风扇叶片变形对气动性能的影响

郑赟; 田晓; 杨慧

跨声速风扇叶片变形对气动性能的影响

北京航空航天大学能源与动力工程学院航空发动机数值仿真研究中心, 北京 100191

基金项目: "凡舟"基金(20090404)

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出版历程
- 收稿日期: 2010-11-18
- 修回日期: 2011-02-12
- 刊出日期: 2011-07-28

Impact of blade deflection on aerodynamic performance of a transonic fan

Aeroengine Numerical Simulation Research Center,School of Jet Propulsion, Beijing University of Aeronautics and Astronautics,Beijing 100191,China

摘要

摘要: 为了研究跨声速风扇叶片变形对气动性能的影响,发展了流固耦合方法计算风扇叶片在气动力作用下变形的数值程序,耦合求解了三维可压缩雷诺平均的Navier-Stokes (N-S)方程和描述叶片振动的结构动力学方程,并模拟了跨声速风扇Rotor 67转子叶片在气动载荷下的变形,重点分析了由于叶片变形带来的气动性能的变化.
- 风扇 /
- 叶片变形 /
- 流固耦合 /
- 静态气动弹性 /
- 非定常流动
Abstract: In order to research the impact of blade deflection on aerodynamic performance of a transonic fan,a numeric program was developed to simulate the deflection of fan blades under aerodynamic loads with fluid-structural interaction method.The aerodynamic model of the fluid flow was based on solving the unsteady three-dimensional(3-D) compressible Reynolds averaged Navier-Stokes equation.The blade vibration was predicted with a linear aeroelasticity model by solving the structure dynamic equation simultaneously with aerodynamic equations.The blade deformation under unsteady aerodynamic loads of the NASA(National Aeronautics and Space Administration) Rotor 67 blade was computed,and the impact on the flowfield and aerodynamic performance was analyzed.
- fan /
- blade deflection /
- fluid-structure interaction /
- static aeroelasticity /
- unsteady flows

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参考文献(12)

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