基于CFD的离心泵内部流场数值模拟与性能预测  

Inner flow field numerical simulation and performance forecast of centrifugal pump based on CFD

作　　者：谢洁飞[1] 李香桂[1] 杨辉[1] 

机构地区：[1]中南林业科技大学机电工程学院,湖南长沙410004

出　　处：《中南林业科技大学学报》2010年第3期129-132,共4页Journal of Central South University of Forestry & Technology

基　　金：中南林业科技大学青年基金项目(07027B)

摘　　要：计算流体动力学方法可以用来模拟和预测离心泵性能。基于三维雷诺时均的navier-stokes方程和标准的k-ε湍流模型,采用三维无结构网格及隐式修正SIMPLEC算法,利用Fluent 6.1软件中提供的多重参考系模型,对某一离心泵内部流场进行了数值模拟,并分析了离心泵内部流动现象和规律。将该离心泵性能预测值与实验值进行了比较,结果表明此种方法具有很高的精度,能为离心泵结构优化和性能预测提供理论基础。The computational fluid dynamics principle can be used to simulate and forecast centrifugal pump performance.Adopting three-dimensional space without the use of grid and SIMPLEC algorithms,this paper simulates the inner flow field of centrifugal pump and analyzes its phenomena and laws,based on 3D reynolds-averaged navier-stokes equations,standard k-ε turbulence model,and multi-reference frame（MRF）.The result shows this method has a high precision,and provides theoretical foundation for optimizing centrifugal pump structure and forecasting centrifugal pump performance.

关 键 词：离心泵 计算流体动力学 数值模拟 性能预测 

分 类 号：TH311[机械工程—机械制造及自动化]