摘要
性能曲线是评价压气机性能的重要指标,对其变化趋势及形成机理的研究具有重要意义。本文对一广泛使用的离心压气机进行全三维CFD模拟,对压气机特性曲线,特别是最高效率点之后的压比特性曲线的若干特点进行分析研究,并总结出形成这些现象的流动机理,为研究者进一步理解压气机的流动特点,从而为指导设计出更高性能的压气机奠定了基础。
The performance curves are important for evaluation of a compressor performance and significant for research on trends and formation mechanism.In the paper,a centrifugal compressor is simulated by a CFD software.The performance curves,especially the characteristics of these curves after the maximum efficiency point,are analyzed.Finally,the formation mechanism of these phenomenon is proposed.Those results provide a guidance for other researchers to understand the flow characteristics of the compressor.
出处
《内燃机与动力装置》
2011年第2期35-39,58,共6页
Internal Combustion Engine & Powerplant
基金
山东大学自主创新基金资助(2009TS050)
关键词
离心压气机
特性曲线
流动分析
数值模拟
Centrifugal Compressor
Performance Curve
Flow Analysis
Numerical Simulation
