马超; 朱智富; 刘云岗; 王桂华
山东大学能源与动力工程学院; 康跃科技股份有限公司;
【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。
【关键词】 离心压气机; 特性曲线; 流动分析; 数值模拟;
【Abstract】 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 compr...
【Key words】 Centrifugal Compressor; Performance Curve; Flow Analysis; Numerical Simulation;
【基金】 山东大学自主创新基金资助(2009TS050)
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