基于CFD电涡流缓速器转子盘叶片结构参数影响分析

Effect on Rotor's Structure Parameters of Eddy Current Retarder Based on CFD

通过改变叶片数量、进口安装角、出口安装角等结构参数建立了9个计算模型,并采用RNG Κ-ε双方程模型进行数值分析,研究各结构参数对叶片内外流场、气流通量、转子盘散热量、叶片压力面和吸力面静态压力的影响,结果表明:在进行转子盘叶片设计时应优先考虑减小进口安装角或出口安装角;在保证转子盘强度的情况下可以减小叶片厚度增加叶片数量,提高叶片散热表面积;上述方法均可有效提高转子盘的散热通量。

By changing structure parameters, such as inlet fix-angle, outlet fix-angle and vane quantity, 9 computational models were set up and analyzed using RNG K-ε double equations model. Effect of the structure parameters on flow field, airflow flux, heat flux and static pressure on pressure and suction face were studied. Results show that inletfix-angle or outlet fix-angle should be decreased and that vane quantity should be added to increase vane surface area under the condition of unique intensity. Heat flux of the rotor can be improved by above methods.