Simulation and Experiment Research of Aerodynamic Performance of Small Axial Fans with Struts

查看全文 作　　者：CHU [1]Wei;LIN [1]Peifeng;ZHANG [1,2]Li;JIN [1]Yingzi;WANG [1]Yanping;Heuy Dong [3]Kim;Toshiaki [4]Setoguchi

机构地区：[1]Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University Xuelin Road, 928, 0571, Hangzhou, China;[2]Department of Application & Engineering, Zhejiang Economic & Trade Polytechnical Xuelin Road, 280, 0571,Hangzhou;[3]School of Mechanical Engineering, Andong National University Seongcheon-Dong1375, Gyeongdong RD, 760-749,Andong, Korea;[4]Department of Mechanical Engineering, Saga University Honjo-machi, 840-8502,Saga Japan

出　　处：《Journal of Thermal Science》索引2016年第25卷第3期,共7页

基　　金：supported by National Natural Science Foundation of China(No.51276172);National Science and Technology Support Project(No.2013BAF05B01)etc 摘　　要：Interaction between rotor and struts has great effect on the performance of small axial fan systems.The small axial fan systems are selected as the studied objects in this paper,and four square struts are downstream of the rotor.The cross section of the struts is changed to the cylindrical shapes for the investigation:one is in the same hydraulic diameter as the square struts and another one is in the same cross section as the square struts.Influence of the shape of the struts on the static pressure characteristics,the internal flow and the sound emission of the small axial fans are studied.Standard K-ε turbulence model and SIMPLE algorithm are applied in the calculation of the steady fluid field,and the curves of the pressure rising against the flow rate are obtained,which demonstrates that the simulation results are in nice consistence with the experimental data.The steady calculation results are set as the initial field in the unsteady calculation.Large eddy simulation and PISO algorithm are used in the transient calculation,and the Ffowcs Williams-Hawkings model is introduced to predict the sound level at the eight monitoring points.The research results show that:the static pressure coefficients of the fan with cylindrical struts increase by about 25%compared to the fan with square struts,and the efficiencies increase by about 28.6%.The research provides a theoretical guide for shape optimization and noise reduction of small axial fan with struts. 关键词：轴流风机气动性能仿真结果实验 SIMPLE算法非定常计算 k-ε湍流模型 PISO算法

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Simulation and Experiment Research of Aerodynamic Performance of Small Axial Fans with Struts

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