| 涡轮机械叶片的流固耦合数值计算方法 |
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| 引用本文： | 张小伟,王延荣,张潇,裴伟.涡轮机械叶片的流固耦合数值计算方法[J].航空动力学报,2009,24(7):1622-1626. |
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| 作者姓名： | 张小伟 王延荣 张潇 裴伟 |
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| 作者单位： | 1. 北京航空航天大学能源与动力工程学院,北京,100191
2. 北方发动机研究所柴油机高增压技术国防科技重点实验室,大同,037036 |
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| 基金项目： | 973计划项目(2007CB210103);;国防科技重点实验室项目(9140C3306070801) |
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| 摘 要： | 发展了一种流固弱耦合数值方法来判断涡轮机械叶片气弹稳定性.通过一种数据交换方法将计算结构动力学(CSD)的节点振动位移施加到计算流体力学(CFD)的叶片表面网格点上,CFD分析采用多层动网格技术实时更新可动域的网格点坐标,并通过有限体积法求解了用k-ε湍流模型封闭的雷诺平均Navier-Stokes(RANS)方程.以NASA 67转子叶片为例,在设计状态下,对比了叶片前4阶模态下一个振动周期内的气动功及模态气动阻尼比,初步分析了叶片的气弹稳定性.计算结果表明:所发展的流固弱耦合数值方法用于判断涡轮机械叶片气弹稳定性是可行的.
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| 关 键 词： | blade fluid-structure interaction（FSI） aeroelastic stability aerodynamic modal damping ratio multi-layer moving grid technique |
| 收稿时间： | 7/2/2008 12:00:00 AM |
| 修稿时间： | 2008/12/30 0:00:00 |
Numerical method for fluid-structure interaction in turbomachinery bladings |
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| ZHANG Xiao-wei,WANG Yan-rong,ZHANG Xiao and PEI Wei.Numerical method for fluid-structure interaction in turbomachinery bladings[J].Journal of Aerospace Power,2009,24(7):1622-1626. |
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| Authors: | ZHANG Xiao-wei WANG Yan-rong ZHANG Xiao and PEI Wei |
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| Institution: | 1.School of Jet Propulsion;Beijing University of Aeronautics and Astronautics;Beijing 100191;China;2.National Key Laboratory of Diesel Engine Turbocharging Technology;China North Engine Research Institute;Datong 037036;China |
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| Abstract: | A numerical simulation method for fluid-structure interaction(FSI) in turbomachinery bladings was presented to predict the aeroelastic stability of blades.The vibrational displacements of computational structural dynamics(CSD) nodes have been interpolated to computational fluid dynamics(CFD)grids at the blade surface using a data transfer method.In CFD analysis,the grid coordinates of the moveable region have been updated by multi-layer moving grid technique,and the finite volume method has been applied to ... |
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| Keywords: | blade fluid-structure interaction (FSI) aeroelastic stability aerodynamic modal damping ratio multi-layer moving grid technique |
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