TY - A2的天野之弥君塞缪尔AU -杜瓦,布雷特盟——Tiainen Jonna做非盟- Jaatinen-Varri Ahti AU -奶油,迈克盟——Dotcheva马里亚纳盟——Radulovic Jovana AU -别克,James m . PY - 2019 DA - 2019/05/19 TI - CFD模拟与实验验证通过离心压缩机的径向扩散器静态压力测量SP - 7415263六世- 2019 AB -本文比较实验与CFD模拟静态压力测量离心式压缩机通过扩散器在12分。三个选择质量流率,每个三个运营速度给九总操作条件。结果表明,CFD模型通常略低估了静压值与实验结果相比。实验和数值结果之间的差异范围-8% + 6%,相当一致的对于一个给定的操作条件,除了靠近叶片后缘,由压力变化不规律,压力和径向位置增加最快。在一致的区域,压力梯度较低,模拟的差异大约是百分之二或更少接近设计操作点。远离设计操作点错误增加了大约5%。仿真结果也被用于调查的影响的位置(从叶片后缘)impeller-diffuser接口(冻结转子模拟方法的特点)。这里的最优位置接口被发现刀刃半径的2%。这个值与实验结果给改进协议在最初的地区扩散的距离大约10%的半径。在长距离的位置界面变得不那么重要了。 The results also highlighted a change in the pressure along the spanwise direction close to the tips. A dip in the pressure, which was observed in the experimental results, was only observed in the simulations close to the shroud. Close to the hub the simulation results recorded a small local peak. The simulation approach was then applied to further study the flow characteristics by examining the full-field velocity and pressure contours in the impeller and diffuser regions to identify changes due to the different operating conditions. SN - 1023-621X UR - https://doi.org/10.1155/2019/7415263 DO - 10.1155/2019/7415263 JF - International Journal of Rotating Machinery PB - Hindawi KW - ER -