| 拓展小尺寸离心压气机级失速裕度机匣处理方案的数值研究 |
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| 引用本文： | 马岩,席光,吴广宽.拓展小尺寸离心压气机级失速裕度机匣处理方案的数值研究[J].工程热物理学报,2011(7). |
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| 作者姓名： | 马岩 席光 吴广宽 |
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| 作者单位： | 西安交通大学能源与动力工程学院;西安理工大学水利水电学院; |
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| 基金项目： | 国家自然科学基金(No.50725621) |
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| 摘 要： | 为提高一小尺寸离心压气机级的失速裕度,首先为其设计了进气回流和周向槽两种机匣处理方案,对实壁机匣和处理机匣压气机级总体性能的分析表明;进气回流并没有起到拓展压气机级失速裕度的效果,周向槽机匣处理对压气机级失速裕度的改进量也只有约2.41%。因此考虑了一种新的机匣处理方案,即同时采用进气回流和周向槽机匣处理。计算结果表明:压气机级失速裕度得到了明显的提高,提高幅度达13.25%。
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| 关 键 词： | 失速裕度 进气回流 周向槽 机匣处理 计算流体动力学 |
Numerical Analysis of Stall Margin Enhancing Casing Treatments of a Small Size Centrifugal Compressor Stage |
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| MA Yan XI Guang WU Guang-Kuan.Numerical Analysis of Stall Margin Enhancing Casing Treatments of a Small Size Centrifugal Compressor Stage[J].Journal of Engineering Thermophysics,2011(7). |
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| Authors: | MA Yan XI Guang WU Guang-Kuan |
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| Institution: | MA Yan~1 XI Guang~1 WU Guang-Kuan~2 (1.School of Energy & Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China,2.Institute of Water Resources and Hydro-electric Engineering,Xi'an University of Technology,Xi'an 710048,China) |
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| Abstract: | In the present paper,two different casing treatment configurations were designed firstly to enhance the stall margin of a small size centrifugal compressor stage.The results indicate that traditional inlet recirculation at impeller inlet does not extend the stall margin of the stage,and the circumferential grooves only extend the stall margin by about 2.41%.Thus a new type casing treatment configuration which adopts inlet recirculation and circumferential grooves simultaneously was proposed in this paper.Th... |
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| Keywords: | stall margin inlet recirculation circumferential grooves casing treatment computational fluid dynamics |
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