| 跨声速压气机转子叶尖非定常流动的数值模拟 |
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| 引用本文： | 卢波,王志强,王剑,高翔.跨声速压气机转子叶尖非定常流动的数值模拟[J].航空动力学报,2017,32(6):1481-1490. |
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| 作者姓名： | 卢波 王志强 王剑 高翔 |
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| 作者单位： | 1.南京航空航天大学 能源与动力学院 江苏省航空动力系统重点实验室，南京 210016 |
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| 基金项目： | 国家自然科学基金（51406080）； 中央高校基本科研业务费专项资金（NJ20150008） |
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| 摘 要： | 为了进一步加深对转子叶尖区域非定常流动现象的认识，针对某一跨声速单转子轴流压气机，采用三维非定常数值方法开展了详细研究。对单转子在不同进气条件以及不同工作流量下分别进行非定常模拟，来研究该转子叶尖区域复杂流动结构以及叶尖非定常流动的发展过程。结果表明:不同进气条件下，转子叶尖区域流场结构形式表现不同.当进口非轴向进气时，叶尖非定常流动呈单通道周期形式；而轴向进气时，叶尖区域出现了类似于“旋转不稳定”的沿周向传播的非定常流动现象，且随着工作流量的减小，叶尖区域流场结构也相应发生改变.
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| 关 键 词： | 叶尖泄漏流 旋转不稳定 非定常流动 流场结构 跨声速压气机 |
| 收稿时间： | 2015/8/27 0:00:00 |
Numerical simulation on blade tip unsteady flow in transonic compressor rotor |
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| LU Bo,WANG Zhiqiang,WANG Jian,GAO Xiang.Numerical simulation on blade tip unsteady flow in transonic compressor rotor[J].Journal of Aerospace Power,2017,32(6):1481-1490. |
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| Authors: | LU Bo WANG Zhiqiang WANG Jian GAO Xiang |
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| Abstract: | The detailed three-dimensional unsteady numerical study was conducted in a transonic compressor rotor to deepen the understanding of unsteady flow phenomenon in rotor blade tip region.Unsteady numerical simulations were studied in single rotor under different inlet conditions and different mass flows,so as to investigate the complex flow structure in rotor blade tip region and the development of blade tip unsteady flow.Results showed that the structure of blade tip flow field varied under different inlet conditions.When inlet direction was non-axial,signal passage periodical form emerged for unsteady flow at blade tip,while an unsteady flow phenomenon like "rotating instability",spreading along circumferential direction,occurred in blade tip region under axial inlet condition.And with the decrease of mass flow,the structural flow field of blade tip region changed correspondingly. |
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| Keywords: | blade tip leakage flow rotating instability unsteady flow structure flow field transonic compressor |
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