基于CFD的滚动活塞压缩机容积效率分析  

THE VOLUMETRIC EFFICIENCY ANALYSIS OF ROLLING PISTON COMPRESSORS BASED ON CFD

作　　者：岳向吉[1] 巴德纯[1] 蔺增[1] 苏征宇[2] 冀凯[2] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110004 [2]沈阳华润三洋压缩机有限公司,辽宁沈阳110044

出　　处：《工程力学》2011年第9期189-194,共6页Engineering Mechanics

摘　　要：基于计算流体力学(CFD)方法,并采用动网格技术建立了滚动活塞压缩机的数值分析模型,再结合理论计算和试验数据对影响容积效率的主要因素进行了研究分析。结果表明:容积系数和温度系数符合理论预期,压力系数与进气通道流动阻力引起的吸气腔压力波动直接相关,泄漏系数是影响容积效率的主要因素。表明该方法可有效识别各因素对容积效率的影响程度并解释其作用过程,在工程实践中具有实用价值。Based on computational fluid dynamics （CFD） method and dynamics mesh technology, the numerical simulation of rolling piston compressor was performed. Main factors affecting the volumetric efficiency were studied by comparing the theoretical calculation and experimental data. The result shows that the volumetric coefficient and the temperature coefficient agree well with theoretical expectations. The pressure coefficient depends directly on the suction chamber pressure fluctuations which were caused by the inlet channel flow resistance, and the leakage coefficient is the main factor affecting the volumetric efficiency. The results imply that the method can effectively identify the influence of various factors on the volumetric efficiency, explain their roles in the working process, and be practical in engineering application.

关 键 词：计算流体力学 滚动活塞压缩机 容积效率 动网格 数值模拟 

分 类 号：TB652[一般工业技术—制冷工程]