| 亚声速压气机转子失速先兆诱发机制的非定常机理分析 |
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| 引用本文： | 吴艳辉,李清鹏,楚武利,张皓光. 亚声速压气机转子失速先兆诱发机制的非定常机理分析[J]. 西北工业大学学报, 2011, 29(3): 491-496 |
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| 作者姓名： | 吴艳辉 李清鹏 楚武利 张皓光 |
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| 作者单位： | 西北工业大学动力与能源学院,陕西西安,710072 |
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| 基金项目： | 国家自然科学基金，航空科学基金 |
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| 摘 要： | 针对某亚声速轴流压气机转子,采用多通道全三维数值模拟方法对其预失速性能(即失速起始过程)进行了时间精确的数值模拟.对计算结果进行分析表明,环面高压斑的传播速度及其影响范围与已有的试验测量结果取得了很好的一致性,因此数值模拟合理地揭示出了突尖波产生的流体动力学机制.叶尖分离涡的形成及其在不同通道的传播是流动失稳过程中叶尖...
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| 关 键 词： | 轴流压气机 非定常数值模拟 间隙流 失速先兆 叶尖分离涡 |
Unsteady Flow Mechanism of Spike Emergence in a Subsonic Axial Flow Compressor Rotor |
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| Wu Yanhui,Li Qingpeng,Chu Wuli,Zhang Haoguang. Unsteady Flow Mechanism of Spike Emergence in a Subsonic Axial Flow Compressor Rotor[J]. Journal of Northwestern Polytechnical University, 2011, 29(3): 491-496 |
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| Authors: | Wu Yanhui Li Qingpeng Chu Wuli Zhang Haoguang |
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| Affiliation: | (Department of Aero-Engines,Northwestern Polytechnical University,Xi′an 710072,China) |
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| Abstract: | Pre-stall behavior in a subsonic axial compressor rotor has been investigated by multi-passage three-dimensional time-accurate numerical simulations.The propagation speed of high pressure spot on flow annulus ahead of the rotor and its associated circumferential and radial influencing area agree well with the available experimental observations.This demonstrates that the current method captured the flow mechanism of spike emergence reasonably.The dominant feature of tip flow fields during the transition pro... |
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| Keywords: | axial flow compressor unsteady simulation tip clearance flow stall precursor tip separation vortex |
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