| 带周向槽机匣处理的离心压气机扩稳机理分析 |
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| 引用本文： | 高鹏,楚武利,吴艳辉,邓文剑.带周向槽机匣处理的离心压气机扩稳机理分析[J].推进技术,2007,28(4):383-387. |
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| 作者姓名： | 高鹏 楚武利 吴艳辉 邓文剑 |
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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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| 摘 要： | 机匣处理能够改善压气机稳定裕度，扩大其稳定工作范围。通过对带周向槽机匣处理的NASA低速离心叶轮（LSCC）进行了时间精确的全三维数值模拟，并对周向槽机匣结构和实壁机匣结构在近失速流量点工况下的计算结果进行了比较分析。分析结果表明，周向槽处理机匣对叶顶间隙泄漏涡的抑制是周向槽机匣处理扩稳的主要原因。
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| 关 键 词： | 压气机 周向槽机匣处理 顶部间隙泄漏涡 |
| 文章编号： | 1001-4055（2007）04-0383-05 |
| 收稿时间： | 2006-09-03 |
| 修稿时间： | 2007-01-21 |
Mechanism of stall margin improvement in a centrifugal compressor with circumferential grooves casing treatment |
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| GAO Peng,CHU Wu-li,WU Yan-hui and DENG Wen-jian.Mechanism of stall margin improvement in a centrifugal compressor with circumferential grooves casing treatment[J].Journal of Propulsion Technology,2007,28(4):383-387. |
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| Authors: | GAO Peng CHU Wu-li WU Yan-hui and DENG Wen-jian |
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| Abstract: | To study the mechanism of stall margin improvement, a time accurate 3-dimentional numerical simulation is performed for a low speed centrifugal compressor with the circumferential grooves casing treatment. The computational results with the mass flow rate of 13 kg/s have been compared between the two different cases with the circumferential grooves and with untreated smooth wall. It is because the development of tip leakage vortex is restrained that the circumferential grooves can extend stall margin. |
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| Keywords: | Compressor Circumferential grooves casing treatment+ Tip leakage vortex |
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