导叶厚度变化对压气机级的性能影响  

Influence of thickness variation of inlet vane profiles on an axial-flow compressor's stage performance

作　　者：吴艳辉[1] 楚武利[1] 卢新根[1] 

机构地区：[1]西北工业大学动力与能源学院,陕西西安710072

出　　处：《推进技术》2005年第5期425-429,共5页Journal of Propulsion Technology

基　　金：国家自然科学基金(50176042);西北工业大学创新基金(M016211)

摘　　要：针对某型压气机改型过程中导叶厚度的变化,用数值分析的方法研究了导叶厚度变化对压气机级的性能影响。原型机已有的级特性实验数据与数值预测结果对比分析表明,程序能很好地预测出原型机级的总性能,并以此为基础分析了导叶厚度变化对压气机级性能的影响。研究结果表明:导叶变薄使得压气机级的效率保持不变,压比略有提高,对提高级的稳定性是有利的。通过对基元性能进一步对比分析解释了导叶厚度变化改善压气机级性能的原因。Numerical analysis was chosen to investigate the thickness variation of inlet vane profiles on an axial - flow eompressor＇s stage performance. First, calculated results were compared with available experimental data and good agreements are achieved between predicted and experimental values for stage＇s performance of the original compressor. Then, the influence of thickness variation of inlet vane profiles on compressor performance was analyzed. It indicates that the thinner vane profiles are favorable to improving the compressor＇s stage performance. Furthermore, detailed analysis of flow field in the stage explains the reason that stage performance is improved.

关 键 词：轴流式压缩机 导流叶片 厚度 数值仿真 性能分析 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]