机械制造与自动化2024，Vol.53Issue(4)：24-31,47,9.DOI:10.19344/j.cnki.issn1671-5276.2024.04.004
超低转速轴流压缩机气动设计
Aerodynamic Design of Ultra-low Rotating Speed Axial Compressor
摘要
Abstract
The lower the compressor speed is,the smaller the centrifugal force of the rotor blade,the lower the structural strength requirement,and the lower the noise is.A super-curved diffuser blade profile with negative outlet angle is used to design the compressor rotor blades to achieve the given pressure ratio,flow rate,ultra-high load and ultra-low speed of the compressor.The selected design load factor is 1.147,much higher than the conventional load factor of 0.4.The automatic optimization design method is adopted in the design process of 2D blade profile and 3D blade.The computer numerical simulation results show that the designed compressor stage can achieve the flow rate and pressure ratio at the given design point with higher stage efficiency.And flow separation is not easy to produce due to the convergence of the rear section of the rotor blade channel,which has a large surge margin.关键词
轴流压缩机/三维叶片/二维叶型/气动设计/优化设计Key words
axial compressor/3D blade/2D blade profile/aerodynamic design/optimization design分类
机械制造引用本文复制引用
杨磊,周正贵..超低转速轴流压缩机气动设计[J].机械制造与自动化,2024,53(4):24-31,47,9.基金项目
国家科技重大专项项目(2017-H-0001-0013) （2017-H-0001-0013）
