涡旋式膨胀机内部流场的数值模拟研究  

Numerical Simulation Research on the Interior Flow Field of Scroll Expander

作　　者：杨兴华[1,2] 潘家祯[1] 王吉岱[2] 张臻臻[2] 

机构地区：[1]华东理工大学,上海200237 [2]山东科技大学,山东青岛266590

出　　处：《流体机械》2013年第2期15-18,共4页Fluid Machinery

基　　金：国家高技术研究发展计划资助项目(863计划)(2009AA05Z212)

摘　　要：为研究涡旋式膨胀机内部流体的流动特性,本文在分析涡旋式膨胀机工作原理的基础上,建立了内部工作腔的二维模型。模拟计算采用了动网格和标准k-ε湍流模型,利用Fluent 6.3模拟实现了涡旋膨胀机内部气体非定常流动的动态分析,得到了不同转角时刻的压力分布和速度分布图,模拟结果表明膨胀腔内压力和速度的分布存在不均匀性。为深入研究膨胀机的工作特性提供了参考依据。In order to study the interior flow field characteristic, a two - dimensional model of the scroll expander has been developed . The dynamic mesh and a standard k-ω turbulence model was used in the simulation. With the aid of the software Fluent 6.3, the unsteady flow field including the pressure and the velocity distribution in the working chamber were achieved. Resuits show that the distribution of the pressure and the velocity is asymmetric. These provide theoretical reference for further study of the working performance of the scroll expander.

关 键 词：涡旋式膨胀机 流场 数值模拟 

分 类 号：TH12[机械工程—机械设计及理论] TB653[一般工业技术—制冷工程]