吴虎, 孙娜. 多级轴流压气机多叶排调节扩稳优化分析[J]. 力学与实践, 2010, 32(2): 26-31. DOI: 10.6052/1000-0879-2009-006
引用本文: 吴虎, 孙娜. 多级轴流压气机多叶排调节扩稳优化分析[J]. 力学与实践, 2010, 32(2): 26-31. DOI: 10.6052/1000-0879-2009-006
WU HU, . NUMERICAL OPTIMIZATION OF A STATOR VANE SETTING FOR ENLARGING AERODYNAMIC STABILITY MARGIN IN MULTISTAGE AXIAL-FLOW COMPRESSORS[J]. MECHANICS IN ENGINEERING, 2010, 32(2): 26-31. DOI: 10.6052/1000-0879-2009-006
Citation: WU HU, . NUMERICAL OPTIMIZATION OF A STATOR VANE SETTING FOR ENLARGING AERODYNAMIC STABILITY MARGIN IN MULTISTAGE AXIAL-FLOW COMPRESSORS[J]. MECHANICS IN ENGINEERING, 2010, 32(2): 26-31. DOI: 10.6052/1000-0879-2009-006

多级轴流压气机多叶排调节扩稳优化分析

NUMERICAL OPTIMIZATION OF A STATOR VANE SETTING FOR ENLARGING AERODYNAMIC STABILITY MARGIN IN MULTISTAGE AXIAL-FLOW COMPRESSORS

  • 摘要: 整理和归纳出合适的流动损失和落后角模型,并将其与逐排基元叶片算法相结合,给出了计算多级轴流压气机特性工程方法; 进一步将其与复合形优化方法相结合,对多级轴流压气机多叶排调节扩稳进行了优化模拟,并应用于某8级轴流压气机算例计算. 结果表明,在部分转速工况下,采用带性能约束的优化调节在不明显降低性能的同时能够显著减小多级压气机不稳定点流量;在设计工况下,采用适当的变几何优化调节不仅能明显扩大压气机稳定工作范围,还能明显提高压气机绝热效率.

     

    Abstract: Practicable loss and deviation models fortransonic and subsonic axial compressors are established. They are combined with the blade row-by-blade row cascademodel. A method for calculating off-design performance of multi-stage axialcompressors is developed, based on those models. Box's optimizationtechnique is then used to optimize the stator vane stagger setting. Themethodology has been incorporated into a computer program and isvalidated by usingdata from an eight-stage transonic axial compressor. Resultsshow that the variable stator stagger setting is a powerful method torematch stages, which can be used to enlarge aerodynamic stability range ofmulti-stage compressors.

     

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