流体机械2017，Vol.45Issue(10)：1-6,24,7.DOI:10.3969/j.issn.1005-0329.2017.10.001
多翼离心风机数值模拟中湍流模型的适用性研究
Study Onapplicability of Turbulence Model in Numerical Simulation of Multi-blade Centrifugal Fan
摘要
Abstract
The three-dimensional steady-state numerical simulation is carried out to compute the external characteristics and inner flow fields of the three turbulence models Spalart-Allmaras,Realizable κ-ε and SST κ-ω. And comparing the numerically computing performance and flow field information with aerodynamic performance and PIV experimental data. The results show that the three turbulence models are in good agreement with the experiment in the stable workspace. The SST κ-ω model has the highest precision,and followed by Spalart-Allmaras. In the low flow-rateregion,there is a large deviation among the three performance prediction. For the inner flow field state,the SST κ-ω model behaves best in capturing the swirl position and the velocity gradient of the flow field. The other two models show quite.关键词
多翼离心风机/气动性能/PIV/湍流模型/多面体网格/数值模拟Key words
multi-bladecentrifugal fan/aerodynamic performance/PIV/turbulence model/polyhedral mesh/numerical simulation分类
机械制造引用本文复制引用
杨伟刚,蒋博彦,赵康发,王军,李斌..多翼离心风机数值模拟中湍流模型的适用性研究[J].流体机械,2017,45(10):1-6,24,7.基金项目
中国南方智谷引进创新团队项目(2013CXTD01) （2013CXTD01）
